123983320

素因数分解:

$2^3\times 5^1\times {\mathrm{1571}}^1\times {\mathrm{1973}}^1$

素因数の和:3555

約数の個数: 32

約数和(自身を含む): 279281520

約数和(自身を除く): 155298200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1571, 1973, 3142, 3946, 6284, 7855, 7892, 9865, 12568, 15710, 15784, 19730, 31420, 39460, 62840, 78920, 3099583, 6199166, 12398332, 15497915, 24796664, 30995830, 61991660, 123983320]

約数ペア:

[(1, 123983320), (2, 61991660), (4, 30995830), (5, 24796664), (8, 15497915), (10, 12398332), (20, 6199166), (40, 3099583), (1571, 78920), (1973, 62840), (3142, 39460), (3946, 31420), (6284, 19730), (7855, 15784), (7892, 15710), (9865, 12568)]