30990640

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{3761}}^1$

素因数の和:3877

約数の個数: 40

約数和(自身を含む): 72772128

約数和(自身を除く): 41781488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 3761, 4120, 7522, 8240, 15044, 18805, 30088, 37610, 60176, 75220, 150440, 300880, 387383, 774766, 1549532, 1936915, 3099064, 3873830, 6198128, 7747660, 15495320, 30990640]

約数ペア:

[(1, 30990640), (2, 15495320), (4, 7747660), (5, 6198128), (8, 3873830), (10, 3099064), (16, 1936915), (20, 1549532), (40, 774766), (80, 387383), (103, 300880), (206, 150440), (412, 75220), (515, 60176), (824, 37610), (1030, 30088), (1648, 18805), (2060, 15044), (3761, 8240), (4120, 7522)]