65507780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19381}}^1$

素因数の和:19416

約数の個数: 36

約数和(自身を含む): 148970052

約数和(自身を除く): 83462272

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 19381, 38762, 77524, 96905, 193810, 251953, 387620, 503906, 1007812, 1259765, 2519530, 3275389, 5039060, 6550778, 13101556, 16376945, 32753890, 65507780]

約数ペア:

[(1, 65507780), (2, 32753890), (4, 16376945), (5, 13101556), (10, 6550778), (13, 5039060), (20, 3275389), (26, 2519530), (52, 1259765), (65, 1007812), (130, 503906), (169, 387620), (260, 251953), (338, 193810), (676, 96905), (845, 77524), (1690, 38762), (3380, 19381)]