81719481220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1129}}^1\times {\mathrm{278393}}^1$

素因数の和:279544

約数の個数: 48

約数和(自身を含む): 184976109360

約数和(自身を除く): 103256628140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1129, 2258, 4516, 5645, 11290, 14677, 22580, 29354, 58708, 73385, 146770, 278393, 293540, 556786, 1113572, 1391965, 2783930, 3619109, 5567860, 7238218, 14476436, 18095545, 36191090, 72382180, 314305697, 628611394, 1257222788, 1571528485, 3143056970, 4085974061, 6286113940, 8171948122, 16343896244, 20429870305, 40859740610, 81719481220]

約数ペア:

[(1, 81719481220), (2, 40859740610), (4, 20429870305), (5, 16343896244), (10, 8171948122), (13, 6286113940), (20, 4085974061), (26, 3143056970), (52, 1571528485), (65, 1257222788), (130, 628611394), (260, 314305697), (1129, 72382180), (2258, 36191090), (4516, 18095545), (5645, 14476436), (11290, 7238218), (14677, 5567860), (22580, 3619109), (29354, 2783930), (58708, 1391965), (73385, 1113572), (146770, 556786), (278393, 293540)]