78985660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{271}}^1$

素因数の和:371

約数の個数: 96

約数和(自身を含む): 191923200

約数和(自身を除く): 112937540

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 59, 65, 76, 95, 118, 130, 190, 236, 247, 260, 271, 295, 380, 494, 542, 590, 767, 988, 1084, 1121, 1180, 1235, 1355, 1534, 2242, 2470, 2710, 3068, 3523, 3835, 4484, 4940, 5149, 5420, 5605, 7046, 7670, 10298, 11210, 14092, 14573, 15340, 15989, 17615, 20596, 22420, 25745, 29146, 31978, 35230, 51490, 58292, 63956, 66937, 70460, 72865, 79945, 102980, 133874, 145730, 159890, 207857, 267748, 291460, 303791, 319780, 334685, 415714, 607582, 669370, 831428, 1039285, 1215164, 1338740, 1518955, 2078570, 3037910, 3949283, 4157140, 6075820, 7898566, 15797132, 19746415, 39492830, 78985660]

約数ペア:

[(1, 78985660), (2, 39492830), (4, 19746415), (5, 15797132), (10, 7898566), (13, 6075820), (19, 4157140), (20, 3949283), (26, 3037910), (38, 2078570), (52, 1518955), (59, 1338740), (65, 1215164), (76, 1039285), (95, 831428), (118, 669370), (130, 607582), (190, 415714), (236, 334685), (247, 319780), (260, 303791), (271, 291460), (295, 267748), (380, 207857), (494, 159890), (542, 145730), (590, 133874), (767, 102980), (988, 79945), (1084, 72865), (1121, 70460), (1180, 66937), (1235, 63956), (1355, 58292), (1534, 51490), (2242, 35230), (2470, 31978), (2710, 29146), (3068, 25745), (3523, 22420), (3835, 20596), (4484, 17615), (4940, 15989), (5149, 15340), (5420, 14573), (5605, 14092), (7046, 11210), (7670, 10298)]