256236080

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{277}}^1\times {\mathrm{373}}^1$

素因数の和:694

約数の個数: 80

約数和(自身を含む): 618841344

約数和(自身を除く): 362605264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 277, 310, 373, 496, 554, 620, 746, 1108, 1240, 1385, 1492, 1865, 2216, 2480, 2770, 2984, 3730, 4432, 5540, 5968, 7460, 8587, 11080, 11563, 14920, 17174, 22160, 23126, 29840, 34348, 42935, 46252, 57815, 68696, 85870, 92504, 103321, 115630, 137392, 171740, 185008, 206642, 231260, 343480, 413284, 462520, 516605, 686960, 826568, 925040, 1033210, 1653136, 2066420, 3202951, 4132840, 6405902, 8265680, 12811804, 16014755, 25623608, 32029510, 51247216, 64059020, 128118040, 256236080]

約数ペア:

[(1, 256236080), (2, 128118040), (4, 64059020), (5, 51247216), (8, 32029510), (10, 25623608), (16, 16014755), (20, 12811804), (31, 8265680), (40, 6405902), (62, 4132840), (80, 3202951), (124, 2066420), (155, 1653136), (248, 1033210), (277, 925040), (310, 826568), (373, 686960), (496, 516605), (554, 462520), (620, 413284), (746, 343480), (1108, 231260), (1240, 206642), (1385, 185008), (1492, 171740), (1865, 137392), (2216, 115630), (2480, 103321), (2770, 92504), (2984, 85870), (3730, 68696), (4432, 57815), (5540, 46252), (5968, 42935), (7460, 34348), (8587, 29840), (11080, 23126), (11563, 22160), (14920, 17174)]