20815050

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{193}}^1\times {\mathrm{719}}^1$

素因数の和:927

約数の個数: 48

約数和(自身を含む): 51960960

約数和(自身を除く): 31145910

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150, 193, 386, 579, 719, 965, 1158, 1438, 1930, 2157, 2895, 3595, 4314, 4825, 5790, 7190, 9650, 10785, 14475, 17975, 21570, 28950, 35950, 53925, 107850, 138767, 277534, 416301, 693835, 832602, 1387670, 2081505, 3469175, 4163010, 6938350, 10407525, 20815050]

約数ペア:

[(1, 20815050), (2, 10407525), (3, 6938350), (5, 4163010), (6, 3469175), (10, 2081505), (15, 1387670), (25, 832602), (30, 693835), (50, 416301), (75, 277534), (150, 138767), (193, 107850), (386, 53925), (579, 35950), (719, 28950), (965, 21570), (1158, 17975), (1438, 14475), (1930, 10785), (2157, 9650), (2895, 7190), (3595, 5790), (4314, 4825)]