12951080

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:254

約数の個数: 64

約数和(自身を含む): 30618000

約数和(自身を除く): 17666920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 53, 82, 106, 149, 164, 205, 212, 265, 298, 328, 410, 424, 530, 596, 745, 820, 1060, 1192, 1490, 1640, 2120, 2173, 2980, 4346, 5960, 6109, 7897, 8692, 10865, 12218, 15794, 17384, 21730, 24436, 30545, 31588, 39485, 43460, 48872, 61090, 63176, 78970, 86920, 122180, 157940, 244360, 315880, 323777, 647554, 1295108, 1618885, 2590216, 3237770, 6475540, 12951080]

約数ペア:

[(1, 12951080), (2, 6475540), (4, 3237770), (5, 2590216), (8, 1618885), (10, 1295108), (20, 647554), (40, 323777), (41, 315880), (53, 244360), (82, 157940), (106, 122180), (149, 86920), (164, 78970), (205, 63176), (212, 61090), (265, 48872), (298, 43460), (328, 39485), (410, 31588), (424, 30545), (530, 24436), (596, 21730), (745, 17384), (820, 15794), (1060, 12218), (1192, 10865), (1490, 8692), (1640, 7897), (2120, 6109), (2173, 5960), (2980, 4346)]