18776720

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2971}}^1$

素因数の和:3063

約数の個数: 40

約数和(自身を含む): 44223360

約数和(自身を除く): 25446640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 2971, 3160, 5942, 6320, 11884, 14855, 23768, 29710, 47536, 59420, 118840, 234709, 237680, 469418, 938836, 1173545, 1877672, 2347090, 3755344, 4694180, 9388360, 18776720]

約数ペア:

[(1, 18776720), (2, 9388360), (4, 4694180), (5, 3755344), (8, 2347090), (10, 1877672), (16, 1173545), (20, 938836), (40, 469418), (79, 237680), (80, 234709), (158, 118840), (316, 59420), (395, 47536), (632, 29710), (790, 23768), (1264, 14855), (1580, 11884), (2971, 6320), (3160, 5942)]