80402140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{6311}}^1$

素因数の和:6347

約数の個数: 72

約数和(自身を含む): 211552992

約数和(自身を除く): 131150852

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1820, 2548, 3185, 6311, 6370, 12622, 12740, 25244, 31555, 44177, 63110, 82043, 88354, 126220, 164086, 176708, 220885, 309239, 328172, 410215, 441770, 574301, 618478, 820430, 883540, 1148602, 1236956, 1546195, 1640860, 2297204, 2871505, 3092390, 4020107, 5743010, 6184780, 8040214, 11486020, 16080428, 20100535, 40201070, 80402140]

約数ペア:

[(1, 80402140), (2, 40201070), (4, 20100535), (5, 16080428), (7, 11486020), (10, 8040214), (13, 6184780), (14, 5743010), (20, 4020107), (26, 3092390), (28, 2871505), (35, 2297204), (49, 1640860), (52, 1546195), (65, 1236956), (70, 1148602), (91, 883540), (98, 820430), (130, 618478), (140, 574301), (182, 441770), (196, 410215), (245, 328172), (260, 309239), (364, 220885), (455, 176708), (490, 164086), (637, 126220), (910, 88354), (980, 82043), (1274, 63110), (1820, 44177), (2548, 31555), (3185, 25244), (6311, 12740), (6370, 12622)]