51977080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1\times {\mathrm{251}}^1$

素因数の和:460

約数の個数: 64

約数和(自身を含む): 121927680

約数和(自身を除く): 69950600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 167, 248, 251, 310, 334, 502, 620, 668, 835, 1004, 1240, 1255, 1336, 1670, 2008, 2510, 3340, 5020, 5177, 6680, 7781, 10040, 10354, 15562, 20708, 25885, 31124, 38905, 41416, 41917, 51770, 62248, 77810, 83834, 103540, 155620, 167668, 207080, 209585, 311240, 335336, 419170, 838340, 1299427, 1676680, 2598854, 5197708, 6497135, 10395416, 12994270, 25988540, 51977080]

約数ペア:

[(1, 51977080), (2, 25988540), (4, 12994270), (5, 10395416), (8, 6497135), (10, 5197708), (20, 2598854), (31, 1676680), (40, 1299427), (62, 838340), (124, 419170), (155, 335336), (167, 311240), (248, 209585), (251, 207080), (310, 167668), (334, 155620), (502, 103540), (620, 83834), (668, 77810), (835, 62248), (1004, 51770), (1240, 41917), (1255, 41416), (1336, 38905), (1670, 31124), (2008, 25885), (2510, 20708), (3340, 15562), (5020, 10354), (5177, 10040), (6680, 7781)]