123975320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{442769}}^1$

素因数の和:442787

約数の個数: 32

約数和(自身を含む): 318794400

約数和(自身を除く): 194819080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 442769, 885538, 1771076, 2213845, 3099383, 3542152, 4427690, 6198766, 8855380, 12397532, 15496915, 17710760, 24795064, 30993830, 61987660, 123975320]

約数ペア:

[(1, 123975320), (2, 61987660), (4, 30993830), (5, 24795064), (7, 17710760), (8, 15496915), (10, 12397532), (14, 8855380), (20, 6198766), (28, 4427690), (35, 3542152), (40, 3099383), (56, 2213845), (70, 1771076), (140, 885538), (280, 442769)]