879663020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{683}}^1\times {\mathrm{907}}^1$

素因数の和:1670

約数の個数: 48

約数和(自身を含む): 1878121728

約数和(自身を除く): 998458708

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 683, 710, 907, 1366, 1420, 1814, 2732, 3415, 3628, 4535, 6830, 9070, 13660, 18140, 48493, 64397, 96986, 128794, 193972, 242465, 257588, 321985, 484930, 619481, 643970, 969860, 1238962, 1287940, 2477924, 3097405, 6194810, 12389620, 43983151, 87966302, 175932604, 219915755, 439831510, 879663020]

約数ペア:

[(1, 879663020), (2, 439831510), (4, 219915755), (5, 175932604), (10, 87966302), (20, 43983151), (71, 12389620), (142, 6194810), (284, 3097405), (355, 2477924), (683, 1287940), (710, 1238962), (907, 969860), (1366, 643970), (1420, 619481), (1814, 484930), (2732, 321985), (3415, 257588), (3628, 242465), (4535, 193972), (6830, 128794), (9070, 96986), (13660, 64397), (18140, 48493)]