20842600

素因数分解:

$2^3\times 5^2\times {\mathrm{23}}^2\times {\mathrm{197}}^1$

素因数の和:259

約数の個数: 72

約数和(自身を含む): 50914710

約数和(自身を除く): 30072110

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 92, 100, 115, 184, 197, 200, 230, 394, 460, 529, 575, 788, 920, 985, 1058, 1150, 1576, 1970, 2116, 2300, 2645, 3940, 4232, 4531, 4600, 4925, 5290, 7880, 9062, 9850, 10580, 13225, 18124, 19700, 21160, 22655, 26450, 36248, 39400, 45310, 52900, 90620, 104213, 105800, 113275, 181240, 208426, 226550, 416852, 453100, 521065, 833704, 906200, 1042130, 2084260, 2605325, 4168520, 5210650, 10421300, 20842600]

約数ペア:

[(1, 20842600), (2, 10421300), (4, 5210650), (5, 4168520), (8, 2605325), (10, 2084260), (20, 1042130), (23, 906200), (25, 833704), (40, 521065), (46, 453100), (50, 416852), (92, 226550), (100, 208426), (115, 181240), (184, 113275), (197, 105800), (200, 104213), (230, 90620), (394, 52900), (460, 45310), (529, 39400), (575, 36248), (788, 26450), (920, 22655), (985, 21160), (1058, 19700), (1150, 18124), (1576, 13225), (1970, 10580), (2116, 9850), (2300, 9062), (2645, 7880), (3940, 5290), (4232, 4925), (4531, 4600)]