72664861840

素因数分解:

$2^4\times 5^1\times {\mathrm{908310773}}^1$

素因数の和:908310786

約数の個数: 20

約数和(自身を含む): 168945803964

約数和(自身を除く): 96280942124

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 908310773, 1816621546, 3633243092, 4541553865, 7266486184, 9083107730, 14532972368, 18166215460, 36332430920, 72664861840]

約数ペア:

[(1, 72664861840), (2, 36332430920), (4, 18166215460), (5, 14532972368), (8, 9083107730), (10, 7266486184), (16, 4541553865), (20, 3633243092), (40, 1816621546), (80, 908310773)]