2019686920

素因数分解:

$2^3\times 5^1\times {\mathrm{2243}}^1\times {\mathrm{22511}}^1$

素因数の和:24765

約数の個数: 32

約数和(自身を含む): 4546523520

約数和(自身を除く): 2526836600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2243, 4486, 8972, 11215, 17944, 22430, 22511, 44860, 45022, 89720, 90044, 112555, 180088, 225110, 450220, 900440, 50492173, 100984346, 201968692, 252460865, 403937384, 504921730, 1009843460, 2019686920]

約数ペア:

[(1, 2019686920), (2, 1009843460), (4, 504921730), (5, 403937384), (8, 252460865), (10, 201968692), (20, 100984346), (40, 50492173), (2243, 900440), (4486, 450220), (8972, 225110), (11215, 180088), (17944, 112555), (22430, 90044), (22511, 89720), (44860, 45022)]