281204924

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:248

約数の個数: 144

約数和(自身を含む): 686407680

約数和(自身を除く): 405202756

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 49, 52, 77, 79, 91, 98, 127, 143, 154, 158, 182, 196, 254, 286, 308, 316, 364, 508, 539, 553, 572, 637, 869, 889, 1001, 1027, 1078, 1106, 1274, 1397, 1651, 1738, 1778, 2002, 2054, 2156, 2212, 2548, 2794, 3302, 3476, 3556, 3871, 4004, 4108, 5588, 6083, 6223, 6604, 7007, 7189, 7742, 9779, 10033, 11297, 11557, 12166, 12446, 14014, 14378, 15484, 18161, 19558, 20066, 22594, 23114, 24332, 24892, 28028, 28756, 36322, 39116, 40132, 42581, 45188, 46228, 50323, 68453, 70231, 72644, 79079, 80899, 85162, 100646, 110363, 127127, 130429, 136906, 140462, 158158, 161798, 170324, 201292, 220726, 254254, 260858, 273812, 280924, 316316, 323596, 441452, 491617, 508508, 521716, 553553, 772541, 889889, 913003, 983234, 1107106, 1434719, 1545082, 1779778, 1826006, 1966468, 2214212, 2869438, 3090164, 3559556, 3652012, 5407787, 5738876, 6391021, 10043033, 10815574, 12782042, 20086066, 21631148, 25564084, 40172132, 70301231, 140602462, 281204924]

約数ペア:

[(1, 281204924), (2, 140602462), (4, 70301231), (7, 40172132), (11, 25564084), (13, 21631148), (14, 20086066), (22, 12782042), (26, 10815574), (28, 10043033), (44, 6391021), (49, 5738876), (52, 5407787), (77, 3652012), (79, 3559556), (91, 3090164), (98, 2869438), (127, 2214212), (143, 1966468), (154, 1826006), (158, 1779778), (182, 1545082), (196, 1434719), (254, 1107106), (286, 983234), (308, 913003), (316, 889889), (364, 772541), (508, 553553), (539, 521716), (553, 508508), (572, 491617), (637, 441452), (869, 323596), (889, 316316), (1001, 280924), (1027, 273812), (1078, 260858), (1106, 254254), (1274, 220726), (1397, 201292), (1651, 170324), (1738, 161798), (1778, 158158), (2002, 140462), (2054, 136906), (2156, 130429), (2212, 127127), (2548, 110363), (2794, 100646), (3302, 85162), (3476, 80899), (3556, 79079), (3871, 72644), (4004, 70231), (4108, 68453), (5588, 50323), (6083, 46228), (6223, 45188), (6604, 42581), (7007, 40132), (7189, 39116), (7742, 36322), (9779, 28756), (10033, 28028), (11297, 24892), (11557, 24332), (12166, 23114), (12446, 22594), (14014, 20066), (14378, 19558), (15484, 18161)]