380068520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{730901}}^1$

素因数の和:730925

約数の個数: 32

約数和(自身を含む): 920936520

約数和(自身を除く): 540868000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 730901, 1461802, 2923604, 3654505, 5847208, 7309010, 9501713, 14618020, 19003426, 29236040, 38006852, 47508565, 76013704, 95017130, 190034260, 380068520]

約数ペア:

[(1, 380068520), (2, 190034260), (4, 95017130), (5, 76013704), (8, 47508565), (10, 38006852), (13, 29236040), (20, 19003426), (26, 14618020), (40, 9501713), (52, 7309010), (65, 5847208), (104, 3654505), (130, 2923604), (260, 1461802), (520, 730901)]