280112508

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{20639}}^1$

素因数の和:20691

約数の個数: 72

約数和(自身を含む): 788860800

約数和(自身を除く): 508748292

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 29, 36, 39, 52, 58, 78, 87, 116, 117, 156, 174, 234, 261, 348, 377, 468, 522, 754, 1044, 1131, 1508, 2262, 3393, 4524, 6786, 13572, 20639, 41278, 61917, 82556, 123834, 185751, 247668, 268307, 371502, 536614, 598531, 743004, 804921, 1073228, 1197062, 1609842, 1795593, 2394124, 2414763, 3219684, 3591186, 4829526, 5386779, 7182372, 7780903, 9659052, 10773558, 15561806, 21547116, 23342709, 31123612, 46685418, 70028127, 93370836, 140056254, 280112508]

約数ペア:

[(1, 280112508), (2, 140056254), (3, 93370836), (4, 70028127), (6, 46685418), (9, 31123612), (12, 23342709), (13, 21547116), (18, 15561806), (26, 10773558), (29, 9659052), (36, 7780903), (39, 7182372), (52, 5386779), (58, 4829526), (78, 3591186), (87, 3219684), (116, 2414763), (117, 2394124), (156, 1795593), (174, 1609842), (234, 1197062), (261, 1073228), (348, 804921), (377, 743004), (468, 598531), (522, 536614), (754, 371502), (1044, 268307), (1131, 247668), (1508, 185751), (2262, 123834), (3393, 82556), (4524, 61917), (6786, 41278), (13572, 20639)]