289905880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{653}}^1\times {\mathrm{1009}}^1$

素因数の和:1684

約数の個数: 64

約数和(自身を含む): 713383200

約数和(自身を除く): 423477320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 653, 1009, 1306, 2018, 2612, 3265, 4036, 5045, 5224, 6530, 7183, 8072, 10090, 11099, 13060, 14366, 20180, 22198, 26120, 28732, 35915, 40360, 44396, 55495, 57464, 71830, 88792, 110990, 143660, 221980, 287320, 443960, 658877, 1317754, 2635508, 3294385, 5271016, 6588770, 7247647, 13177540, 14495294, 26355080, 28990588, 36238235, 57981176, 72476470, 144952940, 289905880]

約数ペア:

[(1, 289905880), (2, 144952940), (4, 72476470), (5, 57981176), (8, 36238235), (10, 28990588), (11, 26355080), (20, 14495294), (22, 13177540), (40, 7247647), (44, 6588770), (55, 5271016), (88, 3294385), (110, 2635508), (220, 1317754), (440, 658877), (653, 443960), (1009, 287320), (1306, 221980), (2018, 143660), (2612, 110990), (3265, 88792), (4036, 71830), (5045, 57464), (5224, 55495), (6530, 44396), (7183, 40360), (8072, 35915), (10090, 28732), (11099, 26120), (13060, 22198), (14366, 20180)]