18358720

素因数分解:

$2^6\times 5^1\times {\mathrm{103}}^1\times {\mathrm{557}}^1$

素因数の和:677

約数の個数: 56

約数和(自身を含む): 44220384

約数和(自身を除く): 25861664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 103, 160, 206, 320, 412, 515, 557, 824, 1030, 1114, 1648, 2060, 2228, 2785, 3296, 4120, 4456, 5570, 6592, 8240, 8912, 11140, 16480, 17824, 22280, 32960, 35648, 44560, 57371, 89120, 114742, 178240, 229484, 286855, 458968, 573710, 917936, 1147420, 1835872, 2294840, 3671744, 4589680, 9179360, 18358720]

約数ペア:

[(1, 18358720), (2, 9179360), (4, 4589680), (5, 3671744), (8, 2294840), (10, 1835872), (16, 1147420), (20, 917936), (32, 573710), (40, 458968), (64, 286855), (80, 229484), (103, 178240), (160, 114742), (206, 89120), (320, 57371), (412, 44560), (515, 35648), (557, 32960), (824, 22280), (1030, 17824), (1114, 16480), (1648, 11140), (2060, 8912), (2228, 8240), (2785, 6592), (3296, 5570), (4120, 4456)]