90398120

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{28607}}^1$

素因数の和:28697

約数の個数: 32

約数和(自身を含む): 205977600

約数和(自身を除く): 115579480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 28607, 57214, 114428, 143035, 228856, 286070, 572140, 1144280, 2259953, 4519906, 9039812, 11299765, 18079624, 22599530, 45199060, 90398120]

約数ペア:

[(1, 90398120), (2, 45199060), (4, 22599530), (5, 18079624), (8, 11299765), (10, 9039812), (20, 4519906), (40, 2259953), (79, 1144280), (158, 572140), (316, 286070), (395, 228856), (632, 143035), (790, 114428), (1580, 57214), (3160, 28607)]