20175720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8849}}^1$

素因数の和:8882

約数の個数: 64

約数和(自身を含む): 63720000

約数和(自身を除く): 43544280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 8849, 17698, 26547, 35396, 44245, 53094, 70792, 88490, 106188, 132735, 168131, 176980, 212376, 265470, 336262, 353960, 504393, 530940, 672524, 840655, 1008786, 1061880, 1345048, 1681310, 2017572, 2521965, 3362620, 4035144, 5043930, 6725240, 10087860, 20175720]

約数ペア:

[(1, 20175720), (2, 10087860), (3, 6725240), (4, 5043930), (5, 4035144), (6, 3362620), (8, 2521965), (10, 2017572), (12, 1681310), (15, 1345048), (19, 1061880), (20, 1008786), (24, 840655), (30, 672524), (38, 530940), (40, 504393), (57, 353960), (60, 336262), (76, 265470), (95, 212376), (114, 176980), (120, 168131), (152, 132735), (190, 106188), (228, 88490), (285, 70792), (380, 53094), (456, 44245), (570, 35396), (760, 26547), (1140, 17698), (2280, 8849)]