39899938180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{431911}}^1$

素因数の和:432100

約数の個数: 48

約数和(自身を含む): 87073459200

約数和(自身を除く): 47173521020

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 149, 155, 298, 310, 596, 620, 745, 1490, 2980, 4619, 9238, 18476, 23095, 46190, 92380, 431911, 863822, 1727644, 2159555, 4319110, 8638220, 13389241, 26778482, 53556964, 64354739, 66946205, 128709478, 133892410, 257418956, 267784820, 321773695, 643547390, 1287094780, 1994996909, 3989993818, 7979987636, 9974984545, 19949969090, 39899938180]

約数ペア:

[(1, 39899938180), (2, 19949969090), (4, 9974984545), (5, 7979987636), (10, 3989993818), (20, 1994996909), (31, 1287094780), (62, 643547390), (124, 321773695), (149, 267784820), (155, 257418956), (298, 133892410), (310, 128709478), (596, 66946205), (620, 64354739), (745, 53556964), (1490, 26778482), (2980, 13389241), (4619, 8638220), (9238, 4319110), (18476, 2159555), (23095, 1727644), (46190, 863822), (92380, 431911)]