20929600

素因数分解:

$2^6\times 5^2\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:252

約数の個数: 84

約数和(自身を含む): 52409344

約数和(自身を除く): 31479744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 103, 127, 160, 200, 206, 254, 320, 400, 412, 508, 515, 635, 800, 824, 1016, 1030, 1270, 1600, 1648, 2032, 2060, 2540, 2575, 3175, 3296, 4064, 4120, 5080, 5150, 6350, 6592, 8128, 8240, 10160, 10300, 12700, 13081, 16480, 20320, 20600, 25400, 26162, 32960, 40640, 41200, 50800, 52324, 65405, 82400, 101600, 104648, 130810, 164800, 203200, 209296, 261620, 327025, 418592, 523240, 654050, 837184, 1046480, 1308100, 2092960, 2616200, 4185920, 5232400, 10464800, 20929600]

約数ペア:

[(1, 20929600), (2, 10464800), (4, 5232400), (5, 4185920), (8, 2616200), (10, 2092960), (16, 1308100), (20, 1046480), (25, 837184), (32, 654050), (40, 523240), (50, 418592), (64, 327025), (80, 261620), (100, 209296), (103, 203200), (127, 164800), (160, 130810), (200, 104648), (206, 101600), (254, 82400), (320, 65405), (400, 52324), (412, 50800), (508, 41200), (515, 40640), (635, 32960), (800, 26162), (824, 25400), (1016, 20600), (1030, 20320), (1270, 16480), (1600, 13081), (1648, 12700), (2032, 10300), (2060, 10160), (2540, 8240), (2575, 8128), (3175, 6592), (3296, 6350), (4064, 5150), (4120, 5080)]