816960040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1123}}^1\times {\mathrm{1399}}^1$

素因数の和:2546

約数の個数: 64

約数和(自身を含む): 1982736000

約数和(自身を除く): 1165775960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1123, 1399, 2246, 2798, 4492, 5596, 5615, 6995, 8984, 11192, 11230, 13990, 14599, 18187, 22460, 27980, 29198, 36374, 44920, 55960, 58396, 72748, 72995, 90935, 116792, 145496, 145990, 181870, 291980, 363740, 583960, 727480, 1571077, 3142154, 6284308, 7855385, 12568616, 15710770, 20424001, 31421540, 40848002, 62843080, 81696004, 102120005, 163392008, 204240010, 408480020, 816960040]

約数ペア:

[(1, 816960040), (2, 408480020), (4, 204240010), (5, 163392008), (8, 102120005), (10, 81696004), (13, 62843080), (20, 40848002), (26, 31421540), (40, 20424001), (52, 15710770), (65, 12568616), (104, 7855385), (130, 6284308), (260, 3142154), (520, 1571077), (1123, 727480), (1399, 583960), (2246, 363740), (2798, 291980), (4492, 181870), (5596, 145990), (5615, 145496), (6995, 116792), (8984, 90935), (11192, 72995), (11230, 72748), (13990, 58396), (14599, 55960), (18187, 44920), (22460, 36374), (27980, 29198)]