20278250

素因数分解:

$2^1\times 5^3\times {\mathrm{29}}^1\times {\mathrm{2797}}^1$

素因数の和:2843

約数の個数: 32

約数和(自身を含む): 39283920

約数和(自身を除く): 19005670

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 125, 145, 250, 290, 725, 1450, 2797, 3625, 5594, 7250, 13985, 27970, 69925, 81113, 139850, 162226, 349625, 405565, 699250, 811130, 2027825, 4055650, 10139125, 20278250]

約数ペア:

[(1, 20278250), (2, 10139125), (5, 4055650), (10, 2027825), (25, 811130), (29, 699250), (50, 405565), (58, 349625), (125, 162226), (145, 139850), (250, 81113), (290, 69925), (725, 27970), (1450, 13985), (2797, 7250), (3625, 5594)]