81870580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{3613}}^1$

素因数の和:3736

約数の個数: 48

約数和(自身を含む): 189431424

約数和(自身を除く): 107560844

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 103, 110, 206, 220, 412, 515, 1030, 1133, 2060, 2266, 3613, 4532, 5665, 7226, 11330, 14452, 18065, 22660, 36130, 39743, 72260, 79486, 158972, 198715, 372139, 397430, 744278, 794860, 1488556, 1860695, 3721390, 4093529, 7442780, 8187058, 16374116, 20467645, 40935290, 81870580]

約数ペア:

[(1, 81870580), (2, 40935290), (4, 20467645), (5, 16374116), (10, 8187058), (11, 7442780), (20, 4093529), (22, 3721390), (44, 1860695), (55, 1488556), (103, 794860), (110, 744278), (206, 397430), (220, 372139), (412, 198715), (515, 158972), (1030, 79486), (1133, 72260), (2060, 39743), (2266, 36130), (3613, 22660), (4532, 18065), (5665, 14452), (7226, 11330)]