20709840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{86291}}^1$

素因数の和:86307

約数の個数: 40

約数和(自身を含む): 64201248

約数和(自身を除く): 43491408

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 86291, 172582, 258873, 345164, 431455, 517746, 690328, 862910, 1035492, 1294365, 1380656, 1725820, 2070984, 2588730, 3451640, 4141968, 5177460, 6903280, 10354920, 20709840]

約数ペア:

[(1, 20709840), (2, 10354920), (3, 6903280), (4, 5177460), (5, 4141968), (6, 3451640), (8, 2588730), (10, 2070984), (12, 1725820), (15, 1380656), (16, 1294365), (20, 1035492), (24, 862910), (30, 690328), (40, 517746), (48, 431455), (60, 345164), (80, 258873), (120, 172582), (240, 86291)]