20318700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{761}}^1$

素因数の和:867

約数の個数: 72

約数和(自身を含む): 59527440

約数和(自身を除く): 39208740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 89, 100, 150, 178, 267, 300, 356, 445, 534, 761, 890, 1068, 1335, 1522, 1780, 2225, 2283, 2670, 3044, 3805, 4450, 4566, 5340, 6675, 7610, 8900, 9132, 11415, 13350, 15220, 19025, 22830, 26700, 38050, 45660, 57075, 67729, 76100, 114150, 135458, 203187, 228300, 270916, 338645, 406374, 677290, 812748, 1015935, 1354580, 1693225, 2031870, 3386450, 4063740, 5079675, 6772900, 10159350, 20318700]

約数ペア:

[(1, 20318700), (2, 10159350), (3, 6772900), (4, 5079675), (5, 4063740), (6, 3386450), (10, 2031870), (12, 1693225), (15, 1354580), (20, 1015935), (25, 812748), (30, 677290), (50, 406374), (60, 338645), (75, 270916), (89, 228300), (100, 203187), (150, 135458), (178, 114150), (267, 76100), (300, 67729), (356, 57075), (445, 45660), (534, 38050), (761, 26700), (890, 22830), (1068, 19025), (1335, 15220), (1522, 13350), (1780, 11415), (2225, 9132), (2283, 8900), (2670, 7610), (3044, 6675), (3805, 5340), (4450, 4566)]