1991680240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2263273}}^1$

素因数の和:2263297

約数の個数: 40

約数和(自身を含む): 5051627568

約数和(自身を除く): 3059947328

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 2263273, 4526546, 9053092, 11316365, 18106184, 22632730, 24896003, 36212368, 45265460, 49792006, 90530920, 99584012, 124480015, 181061840, 199168024, 248960030, 398336048, 497920060, 995840120, 1991680240]

約数ペア:

[(1, 1991680240), (2, 995840120), (4, 497920060), (5, 398336048), (8, 248960030), (10, 199168024), (11, 181061840), (16, 124480015), (20, 99584012), (22, 90530920), (40, 49792006), (44, 45265460), (55, 36212368), (80, 24896003), (88, 22632730), (110, 18106184), (176, 11316365), (220, 9053092), (440, 4526546), (880, 2263273)]