80857940

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1\times {\mathrm{347}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 173988864

約数和(自身を除く): 93130924

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 191, 244, 305, 347, 382, 610, 694, 764, 955, 1220, 1388, 1735, 1910, 3470, 3820, 6940, 11651, 21167, 23302, 42334, 46604, 58255, 66277, 84668, 105835, 116510, 132554, 211670, 233020, 265108, 331385, 423340, 662770, 1325540, 4042897, 8085794, 16171588, 20214485, 40428970, 80857940]

約数ペア:

[(1, 80857940), (2, 40428970), (4, 20214485), (5, 16171588), (10, 8085794), (20, 4042897), (61, 1325540), (122, 662770), (191, 423340), (244, 331385), (305, 265108), (347, 233020), (382, 211670), (610, 132554), (694, 116510), (764, 105835), (955, 84668), (1220, 66277), (1388, 58255), (1735, 46604), (1910, 42334), (3470, 23302), (3820, 21167), (6940, 11651)]