721095440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{23909}}^1$

素因数の和:23964

約数の個数: 80

約数和(自身を含む): 1867849200

約数和(自身を除く): 1146753760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 40, 52, 58, 65, 80, 104, 116, 130, 145, 208, 232, 260, 290, 377, 464, 520, 580, 754, 1040, 1160, 1508, 1885, 2320, 3016, 3770, 6032, 7540, 15080, 23909, 30160, 47818, 95636, 119545, 191272, 239090, 310817, 382544, 478180, 621634, 693361, 956360, 1243268, 1386722, 1554085, 1912720, 2486536, 2773444, 3108170, 3466805, 4973072, 5546888, 6216340, 6933610, 9013693, 11093776, 12432680, 13867220, 18027386, 24865360, 27734440, 36054772, 45068465, 55468880, 72109544, 90136930, 144219088, 180273860, 360547720, 721095440]

約数ペア:

[(1, 721095440), (2, 360547720), (4, 180273860), (5, 144219088), (8, 90136930), (10, 72109544), (13, 55468880), (16, 45068465), (20, 36054772), (26, 27734440), (29, 24865360), (40, 18027386), (52, 13867220), (58, 12432680), (65, 11093776), (80, 9013693), (104, 6933610), (116, 6216340), (130, 5546888), (145, 4973072), (208, 3466805), (232, 3108170), (260, 2773444), (290, 2486536), (377, 1912720), (464, 1554085), (520, 1386722), (580, 1243268), (754, 956360), (1040, 693361), (1160, 621634), (1508, 478180), (1885, 382544), (2320, 310817), (3016, 239090), (3770, 191272), (6032, 119545), (7540, 95636), (15080, 47818), (23909, 30160)]