18996640

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9133}}^1$

素因数の和:9161

約数の個数: 48

約数和(自身を含む): 48337128

約数和(自身を除く): 29340488

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 9133, 18266, 36532, 45665, 73064, 91330, 118729, 146128, 182660, 237458, 292256, 365320, 474916, 593645, 730640, 949832, 1187290, 1461280, 1899664, 2374580, 3799328, 4749160, 9498320, 18996640]

約数ペア:

[(1, 18996640), (2, 9498320), (4, 4749160), (5, 3799328), (8, 2374580), (10, 1899664), (13, 1461280), (16, 1187290), (20, 949832), (26, 730640), (32, 593645), (40, 474916), (52, 365320), (65, 292256), (80, 237458), (104, 182660), (130, 146128), (160, 118729), (208, 91330), (260, 73064), (416, 45665), (520, 36532), (1040, 18266), (2080, 9133)]