123699920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1609}}^1$

素因数の和:1684

約数の個数: 60

約数和(自身を含む): 297363780

約数和(自身を除く): 173663860

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 961, 1240, 1609, 1922, 2480, 3218, 3844, 4805, 6436, 7688, 8045, 9610, 12872, 15376, 16090, 19220, 25744, 32180, 38440, 49879, 64360, 76880, 99758, 128720, 199516, 249395, 399032, 498790, 798064, 997580, 1546249, 1995160, 3092498, 3990320, 6184996, 7731245, 12369992, 15462490, 24739984, 30924980, 61849960, 123699920]

約数ペア:

[(1, 123699920), (2, 61849960), (4, 30924980), (5, 24739984), (8, 15462490), (10, 12369992), (16, 7731245), (20, 6184996), (31, 3990320), (40, 3092498), (62, 1995160), (80, 1546249), (124, 997580), (155, 798064), (248, 498790), (310, 399032), (496, 249395), (620, 199516), (961, 128720), (1240, 99758), (1609, 76880), (1922, 64360), (2480, 49879), (3218, 38440), (3844, 32180), (4805, 25744), (6436, 19220), (7688, 16090), (8045, 15376), (9610, 12872)]