81303430

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{16903}}^1$

素因数の和:16960

約数の個数: 32

約数和(自身を含む): 161872704

約数和(自身を除く): 80569274

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 481, 962, 2405, 4810, 16903, 33806, 84515, 169030, 219739, 439478, 625411, 1098695, 1250822, 2197390, 3127055, 6254110, 8130343, 16260686, 40651715, 81303430]

約数ペア:

[(1, 81303430), (2, 40651715), (5, 16260686), (10, 8130343), (13, 6254110), (26, 3127055), (37, 2197390), (65, 1250822), (74, 1098695), (130, 625411), (185, 439478), (370, 219739), (481, 169030), (962, 84515), (2405, 33806), (4810, 16903)]