18537868120

素因数分解:

$2^3\times 5^1\times {\mathrm{16879}}^1\times {\mathrm{27457}}^1$

素因数の和:44347

約数の個数: 32

約数和(自身を含む): 41714193600

約数和(自身を除く): 23176325480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 16879, 27457, 33758, 54914, 67516, 84395, 109828, 135032, 137285, 168790, 219656, 274570, 337580, 549140, 675160, 1098280, 463446703, 926893406, 1853786812, 2317233515, 3707573624, 4634467030, 9268934060, 18537868120]

約数ペア:

[(1, 18537868120), (2, 9268934060), (4, 4634467030), (5, 3707573624), (8, 2317233515), (10, 1853786812), (20, 926893406), (40, 463446703), (16879, 1098280), (27457, 675160), (33758, 549140), (54914, 337580), (67516, 274570), (84395, 219656), (109828, 168790), (135032, 137285)]