257825100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{66109}}^1$

素因数の和:66139

約数の個数: 72

約数和(自身を含む): 803368720

約数和(自身を除く): 545543620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 66109, 132218, 198327, 264436, 330545, 396654, 661090, 793308, 859417, 991635, 1322180, 1652725, 1718834, 1983270, 2578251, 3305450, 3437668, 3966540, 4297085, 4958175, 5156502, 6610900, 8594170, 9916350, 10313004, 12891255, 17188340, 19832700, 21485425, 25782510, 42970850, 51565020, 64456275, 85941700, 128912550, 257825100]

約数ペア:

[(1, 257825100), (2, 128912550), (3, 85941700), (4, 64456275), (5, 51565020), (6, 42970850), (10, 25782510), (12, 21485425), (13, 19832700), (15, 17188340), (20, 12891255), (25, 10313004), (26, 9916350), (30, 8594170), (39, 6610900), (50, 5156502), (52, 4958175), (60, 4297085), (65, 3966540), (75, 3437668), (78, 3305450), (100, 2578251), (130, 1983270), (150, 1718834), (156, 1652725), (195, 1322180), (260, 991635), (300, 859417), (325, 793308), (390, 661090), (650, 396654), (780, 330545), (975, 264436), (1300, 198327), (1950, 132218), (3900, 66109)]