254697040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{244901}}^1$

素因数の和:244927

約数の個数: 40

約数和(自身を含む): 637724808

約数和(自身を除く): 383027768

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 244901, 489802, 979604, 1224505, 1959208, 2449010, 3183713, 3918416, 4898020, 6367426, 9796040, 12734852, 15918565, 19592080, 25469704, 31837130, 50939408, 63674260, 127348520, 254697040]

約数ペア:

[(1, 254697040), (2, 127348520), (4, 63674260), (5, 50939408), (8, 31837130), (10, 25469704), (13, 19592080), (16, 15918565), (20, 12734852), (26, 9796040), (40, 6367426), (52, 4898020), (65, 3918416), (80, 3183713), (104, 2449010), (130, 1959208), (208, 1224505), (260, 979604), (520, 489802), (1040, 244901)]