20569120

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:99

約数の個数: 192

約数和(自身を含む): 60963840

約数和(自身を除く): 40394720

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 29, 31, 32, 40, 44, 52, 55, 58, 62, 65, 80, 88, 104, 110, 116, 124, 130, 143, 145, 155, 160, 176, 208, 220, 232, 248, 260, 286, 290, 310, 319, 341, 352, 377, 403, 416, 440, 464, 496, 520, 572, 580, 620, 638, 682, 715, 754, 806, 880, 899, 928, 992, 1040, 1144, 1160, 1240, 1276, 1364, 1430, 1508, 1595, 1612, 1705, 1760, 1798, 1885, 2015, 2080, 2288, 2320, 2480, 2552, 2728, 2860, 3016, 3190, 3224, 3410, 3596, 3770, 4030, 4147, 4433, 4495, 4576, 4640, 4960, 5104, 5456, 5720, 6032, 6380, 6448, 6820, 7192, 7540, 8060, 8294, 8866, 8990, 9889, 10208, 10912, 11440, 11687, 12064, 12760, 12896, 13640, 14384, 15080, 16120, 16588, 17732, 17980, 19778, 20735, 22165, 22880, 23374, 25520, 27280, 28768, 30160, 32240, 33176, 35464, 35960, 39556, 41470, 44330, 46748, 49445, 51040, 54560, 58435, 60320, 64480, 66352, 70928, 71920, 79112, 82940, 88660, 93496, 98890, 116870, 128557, 132704, 141856, 143840, 158224, 165880, 177320, 186992, 197780, 233740, 257114, 316448, 331760, 354640, 373984, 395560, 467480, 514228, 642785, 663520, 709280, 791120, 934960, 1028456, 1285570, 1582240, 1869920, 2056912, 2571140, 4113824, 5142280, 10284560, 20569120]

約数ペア:

[(1, 20569120), (2, 10284560), (4, 5142280), (5, 4113824), (8, 2571140), (10, 2056912), (11, 1869920), (13, 1582240), (16, 1285570), (20, 1028456), (22, 934960), (26, 791120), (29, 709280), (31, 663520), (32, 642785), (40, 514228), (44, 467480), (52, 395560), (55, 373984), (58, 354640), (62, 331760), (65, 316448), (80, 257114), (88, 233740), (104, 197780), (110, 186992), (116, 177320), (124, 165880), (130, 158224), (143, 143840), (145, 141856), (155, 132704), (160, 128557), (176, 116870), (208, 98890), (220, 93496), (232, 88660), (248, 82940), (260, 79112), (286, 71920), (290, 70928), (310, 66352), (319, 64480), (341, 60320), (352, 58435), (377, 54560), (403, 51040), (416, 49445), (440, 46748), (464, 44330), (496, 41470), (520, 39556), (572, 35960), (580, 35464), (620, 33176), (638, 32240), (682, 30160), (715, 28768), (754, 27280), (806, 25520), (880, 23374), (899, 22880), (928, 22165), (992, 20735), (1040, 19778), (1144, 17980), (1160, 17732), (1240, 16588), (1276, 16120), (1364, 15080), (1430, 14384), (1508, 13640), (1595, 12896), (1612, 12760), (1705, 12064), (1760, 11687), (1798, 11440), (1885, 10912), (2015, 10208), (2080, 9889), (2288, 8990), (2320, 8866), (2480, 8294), (2552, 8060), (2728, 7540), (2860, 7192), (3016, 6820), (3190, 6448), (3224, 6380), (3410, 6032), (3596, 5720), (3770, 5456), (4030, 5104), (4147, 4960), (4433, 4640), (4495, 4576)]