199903990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3251}}^1$

素因数の和:3325

約数の個数: 64

約数和(自身を含む): 432698112

約数和(自身を除く): 232794122

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 43, 55, 65, 86, 110, 130, 143, 215, 286, 430, 473, 559, 715, 946, 1118, 1430, 2365, 2795, 3251, 4730, 5590, 6149, 6502, 12298, 16255, 30745, 32510, 35761, 42263, 61490, 71522, 84526, 139793, 178805, 211315, 279586, 357610, 422630, 464893, 698965, 929786, 1397930, 1537723, 1817309, 2324465, 3075446, 3634618, 4648930, 7688615, 9086545, 15377230, 18173090, 19990399, 39980798, 99951995, 199903990]

約数ペア:

[(1, 199903990), (2, 99951995), (5, 39980798), (10, 19990399), (11, 18173090), (13, 15377230), (22, 9086545), (26, 7688615), (43, 4648930), (55, 3634618), (65, 3075446), (86, 2324465), (110, 1817309), (130, 1537723), (143, 1397930), (215, 929786), (286, 698965), (430, 464893), (473, 422630), (559, 357610), (715, 279586), (946, 211315), (1118, 178805), (1430, 139793), (2365, 84526), (2795, 71522), (3251, 61490), (4730, 42263), (5590, 35761), (6149, 32510), (6502, 30745), (12298, 16255)]