207978788

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2767}}^1$

素因数の和:2856

約数の個数: 48

約数和(自身を含む): 409221120

約数和(自身を除く): 201242332

約数列:

[1, 2, 4, 19, 23, 38, 43, 46, 76, 86, 92, 172, 437, 817, 874, 989, 1634, 1748, 1978, 2767, 3268, 3956, 5534, 11068, 18791, 37582, 52573, 63641, 75164, 105146, 118981, 127282, 210292, 237962, 254564, 475924, 1209179, 2260639, 2418358, 2736563, 4521278, 4836716, 5473126, 9042556, 10946252, 51994697, 103989394, 207978788]

約数ペア:

[(1, 207978788), (2, 103989394), (4, 51994697), (19, 10946252), (23, 9042556), (38, 5473126), (43, 4836716), (46, 4521278), (76, 2736563), (86, 2418358), (92, 2260639), (172, 1209179), (437, 475924), (817, 254564), (874, 237962), (989, 210292), (1634, 127282), (1748, 118981), (1978, 105146), (2767, 75164), (3268, 63641), (3956, 52573), (5534, 37582), (11068, 18791)]