20912658256

素因数分解:

$2^4\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{307}}^1$

素因数の和:634

約数の個数: 240

約数和(自身を含む): 52899739200

約数和(自身を除く): 31987080944

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 19, 28, 34, 38, 49, 56, 68, 76, 98, 112, 119, 133, 136, 152, 196, 238, 266, 269, 272, 304, 307, 323, 392, 476, 532, 538, 614, 646, 784, 833, 931, 952, 1064, 1076, 1228, 1292, 1666, 1862, 1883, 1904, 2128, 2149, 2152, 2261, 2456, 2584, 3332, 3724, 3766, 4298, 4304, 4522, 4573, 4912, 5111, 5168, 5219, 5833, 6664, 7448, 7532, 8596, 9044, 9146, 10222, 10438, 11666, 13181, 13328, 14896, 15043, 15064, 15827, 17192, 18088, 18292, 20444, 20876, 23332, 26362, 30086, 30128, 31654, 32011, 34384, 35777, 36176, 36533, 36584, 40831, 40888, 41752, 46664, 52724, 60172, 63308, 64022, 71554, 73066, 73168, 81662, 81776, 82583, 83504, 86887, 93328, 99161, 105448, 120344, 126616, 128044, 143108, 146132, 163324, 165166, 173774, 198322, 210896, 224077, 240688, 250439, 253232, 255731, 256088, 285817, 286216, 292264, 326648, 330332, 347548, 396644, 448154, 500878, 511462, 512176, 571634, 572432, 578081, 584528, 608209, 653296, 660664, 694127, 695096, 793288, 896308, 1001756, 1022924, 1143268, 1156162, 1216418, 1321328, 1388254, 1390192, 1403911, 1569077, 1586576, 1792616, 2003512, 2045848, 2286536, 2312324, 2432836, 2776508, 2807822, 3138154, 3585232, 4007024, 4046567, 4091696, 4257463, 4573072, 4624648, 4858889, 4865672, 5553016, 5615644, 6276308, 8093134, 8514926, 9249296, 9717778, 9731344, 9827377, 10983539, 11106032, 11231288, 12552616, 16186268, 17029852, 19435556, 19654754, 21967078, 22462576, 25105232, 26674309, 32372536, 34059704, 38871112, 39309508, 43934156, 53348618, 64745072, 68119408, 68791639, 76884773, 77742224, 78619016, 87868312, 106697236, 137583278, 153769546, 157238032, 175736624, 186720163, 213394472, 275166556, 307539092, 373440326, 426788944, 550333112, 615078184, 746880652, 1100666224, 1230156368, 1307041141, 1493761304, 2614082282, 2987522608, 5228164564, 10456329128, 20912658256]

約数ペア:

[(1, 20912658256), (2, 10456329128), (4, 5228164564), (7, 2987522608), (8, 2614082282), (14, 1493761304), (16, 1307041141), (17, 1230156368), (19, 1100666224), (28, 746880652), (34, 615078184), (38, 550333112), (49, 426788944), (56, 373440326), (68, 307539092), (76, 275166556), (98, 213394472), (112, 186720163), (119, 175736624), (133, 157238032), (136, 153769546), (152, 137583278), (196, 106697236), (238, 87868312), (266, 78619016), (269, 77742224), (272, 76884773), (304, 68791639), (307, 68119408), (323, 64745072), (392, 53348618), (476, 43934156), (532, 39309508), (538, 38871112), (614, 34059704), (646, 32372536), (784, 26674309), (833, 25105232), (931, 22462576), (952, 21967078), (1064, 19654754), (1076, 19435556), (1228, 17029852), (1292, 16186268), (1666, 12552616), (1862, 11231288), (1883, 11106032), (1904, 10983539), (2128, 9827377), (2149, 9731344), (2152, 9717778), (2261, 9249296), (2456, 8514926), (2584, 8093134), (3332, 6276308), (3724, 5615644), (3766, 5553016), (4298, 4865672), (4304, 4858889), (4522, 4624648), (4573, 4573072), (4912, 4257463), (5111, 4091696), (5168, 4046567), (5219, 4007024), (5833, 3585232), (6664, 3138154), (7448, 2807822), (7532, 2776508), (8596, 2432836), (9044, 2312324), (9146, 2286536), (10222, 2045848), (10438, 2003512), (11666, 1792616), (13181, 1586576), (13328, 1569077), (14896, 1403911), (15043, 1390192), (15064, 1388254), (15827, 1321328), (17192, 1216418), (18088, 1156162), (18292, 1143268), (20444, 1022924), (20876, 1001756), (23332, 896308), (26362, 793288), (30086, 695096), (30128, 694127), (31654, 660664), (32011, 653296), (34384, 608209), (35777, 584528), (36176, 578081), (36533, 572432), (36584, 571634), (40831, 512176), (40888, 511462), (41752, 500878), (46664, 448154), (52724, 396644), (60172, 347548), (63308, 330332), (64022, 326648), (71554, 292264), (73066, 286216), (73168, 285817), (81662, 256088), (81776, 255731), (82583, 253232), (83504, 250439), (86887, 240688), (93328, 224077), (99161, 210896), (105448, 198322), (120344, 173774), (126616, 165166), (128044, 163324), (143108, 146132)]