18477040

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3253}}^1$

素因数の和:3337

約数の個数: 40

約数和(自身を含む): 43577568

約数和(自身を除く): 25100528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 3253, 5680, 6506, 13012, 16265, 26024, 32530, 52048, 65060, 130120, 230963, 260240, 461926, 923852, 1154815, 1847704, 2309630, 3695408, 4619260, 9238520, 18477040]

約数ペア:

[(1, 18477040), (2, 9238520), (4, 4619260), (5, 3695408), (8, 2309630), (10, 1847704), (16, 1154815), (20, 923852), (40, 461926), (71, 260240), (80, 230963), (142, 130120), (284, 65060), (355, 52048), (568, 32530), (710, 26024), (1136, 16265), (1420, 13012), (2840, 6506), (3253, 5680)]