180805640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{1049}}^1$

素因数の和:1230

約数の個数: 64

約数和(自身を含む): 423360000

約数和(自身を除く): 242554360

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 139, 155, 248, 278, 310, 556, 620, 695, 1049, 1112, 1240, 1390, 2098, 2780, 4196, 4309, 5245, 5560, 8392, 8618, 10490, 17236, 20980, 21545, 32519, 34472, 41960, 43090, 65038, 86180, 130076, 145811, 162595, 172360, 260152, 291622, 325190, 583244, 650380, 729055, 1166488, 1300760, 1458110, 2916220, 4520141, 5832440, 9040282, 18080564, 22600705, 36161128, 45201410, 90402820, 180805640]

約数ペア:

[(1, 180805640), (2, 90402820), (4, 45201410), (5, 36161128), (8, 22600705), (10, 18080564), (20, 9040282), (31, 5832440), (40, 4520141), (62, 2916220), (124, 1458110), (139, 1300760), (155, 1166488), (248, 729055), (278, 650380), (310, 583244), (556, 325190), (620, 291622), (695, 260152), (1049, 172360), (1112, 162595), (1240, 145811), (1390, 130076), (2098, 86180), (2780, 65038), (4196, 43090), (4309, 41960), (5245, 34472), (5560, 32519), (8392, 21545), (8618, 20980), (10490, 17236)]