20461720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^2\times {\mathrm{967}}^1$

素因数の和:1024

約数の個数: 48

約数和(自身を含む): 48177360

約数和(自身を除く): 27715640

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 529, 920, 967, 1058, 1934, 2116, 2645, 3868, 4232, 4835, 5290, 7736, 9670, 10580, 19340, 21160, 22241, 38680, 44482, 88964, 111205, 177928, 222410, 444820, 511543, 889640, 1023086, 2046172, 2557715, 4092344, 5115430, 10230860, 20461720]

約数ペア:

[(1, 20461720), (2, 10230860), (4, 5115430), (5, 4092344), (8, 2557715), (10, 2046172), (20, 1023086), (23, 889640), (40, 511543), (46, 444820), (92, 222410), (115, 177928), (184, 111205), (230, 88964), (460, 44482), (529, 38680), (920, 22241), (967, 21160), (1058, 19340), (1934, 10580), (2116, 9670), (2645, 7736), (3868, 5290), (4232, 4835)]