90013880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{1373}}^1$

素因数の和:1544

約数の個数: 64

約数和(自身を含む): 222588000

約数和(自身を除く): 132574120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 149, 220, 298, 440, 596, 745, 1192, 1373, 1490, 1639, 2746, 2980, 3278, 5492, 5960, 6556, 6865, 8195, 10984, 13112, 13730, 15103, 16390, 27460, 30206, 32780, 54920, 60412, 65560, 75515, 120824, 151030, 204577, 302060, 409154, 604120, 818308, 1022885, 1636616, 2045770, 2250347, 4091540, 4500694, 8183080, 9001388, 11251735, 18002776, 22503470, 45006940, 90013880]

約数ペア:

[(1, 90013880), (2, 45006940), (4, 22503470), (5, 18002776), (8, 11251735), (10, 9001388), (11, 8183080), (20, 4500694), (22, 4091540), (40, 2250347), (44, 2045770), (55, 1636616), (88, 1022885), (110, 818308), (149, 604120), (220, 409154), (298, 302060), (440, 204577), (596, 151030), (745, 120824), (1192, 75515), (1373, 65560), (1490, 60412), (1639, 54920), (2746, 32780), (2980, 30206), (3278, 27460), (5492, 16390), (5960, 15103), (6556, 13730), (6865, 13112), (8195, 10984)]