40304840

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{241}}^1$

素因数の和:402

約数の個数: 64

約数和(自身を含む): 94350960

約数和(自身を除く): 54046120

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 113, 148, 185, 226, 241, 296, 370, 452, 482, 565, 740, 904, 964, 1130, 1205, 1480, 1928, 2260, 2410, 4181, 4520, 4820, 8362, 8917, 9640, 16724, 17834, 20905, 27233, 33448, 35668, 41810, 44585, 54466, 71336, 83620, 89170, 108932, 136165, 167240, 178340, 217864, 272330, 356680, 544660, 1007621, 1089320, 2015242, 4030484, 5038105, 8060968, 10076210, 20152420, 40304840]

約数ペア:

[(1, 40304840), (2, 20152420), (4, 10076210), (5, 8060968), (8, 5038105), (10, 4030484), (20, 2015242), (37, 1089320), (40, 1007621), (74, 544660), (113, 356680), (148, 272330), (185, 217864), (226, 178340), (241, 167240), (296, 136165), (370, 108932), (452, 89170), (482, 83620), (565, 71336), (740, 54466), (904, 44585), (964, 41810), (1130, 35668), (1205, 33448), (1480, 27233), (1928, 20905), (2260, 17834), (2410, 16724), (4181, 9640), (4520, 8917), (4820, 8362)]