18686920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{66739}}^1$

素因数の和:66757

約数の個数: 32

約数和(自身を含む): 48052800

約数和(自身を除く): 29365880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 66739, 133478, 266956, 333695, 467173, 533912, 667390, 934346, 1334780, 1868692, 2335865, 2669560, 3737384, 4671730, 9343460, 18686920]

約数ペア:

[(1, 18686920), (2, 9343460), (4, 4671730), (5, 3737384), (7, 2669560), (8, 2335865), (10, 1868692), (14, 1334780), (20, 934346), (28, 667390), (35, 533912), (40, 467173), (56, 333695), (70, 266956), (140, 133478), (280, 66739)]