493467620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{14591}}^1$

素因数の和:14708

約数の個数: 48

約数和(自身を含む): 1103155200

約数和(自身を除く): 609687580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 356, 380, 445, 890, 1691, 1780, 3382, 6764, 8455, 14591, 16910, 29182, 33820, 58364, 72955, 145910, 277229, 291820, 554458, 1108916, 1298599, 1386145, 2597198, 2772290, 5194396, 5544580, 6492995, 12985990, 24673381, 25971980, 49346762, 98693524, 123366905, 246733810, 493467620]

約数ペア:

[(1, 493467620), (2, 246733810), (4, 123366905), (5, 98693524), (10, 49346762), (19, 25971980), (20, 24673381), (38, 12985990), (76, 6492995), (89, 5544580), (95, 5194396), (178, 2772290), (190, 2597198), (356, 1386145), (380, 1298599), (445, 1108916), (890, 554458), (1691, 291820), (1780, 277229), (3382, 145910), (6764, 72955), (8455, 58364), (14591, 33820), (16910, 29182)]