129940840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2437}}^1$

素因数の和:2522

約数の個数: 64

約数和(自身を含む): 308943360

約数和(自身を除く): 179002520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 43, 62, 86, 124, 155, 172, 215, 248, 310, 344, 430, 620, 860, 1240, 1333, 1720, 2437, 2666, 4874, 5332, 6665, 9748, 10664, 12185, 13330, 19496, 24370, 26660, 48740, 53320, 75547, 97480, 104791, 151094, 209582, 302188, 377735, 419164, 523955, 604376, 755470, 838328, 1047910, 1510940, 2095820, 3021880, 3248521, 4191640, 6497042, 12994084, 16242605, 25988168, 32485210, 64970420, 129940840]

約数ペア:

[(1, 129940840), (2, 64970420), (4, 32485210), (5, 25988168), (8, 16242605), (10, 12994084), (20, 6497042), (31, 4191640), (40, 3248521), (43, 3021880), (62, 2095820), (86, 1510940), (124, 1047910), (155, 838328), (172, 755470), (215, 604376), (248, 523955), (310, 419164), (344, 377735), (430, 302188), (620, 209582), (860, 151094), (1240, 104791), (1333, 97480), (1720, 75547), (2437, 53320), (2666, 48740), (4874, 26660), (5332, 24370), (6665, 19496), (9748, 13330), (10664, 12185)]