213396380

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{1031}}^1$

素因数の和:1250

約数の個数: 48

約数和(自身を含む): 457712640

約数和(自身を除く): 244316260

約数列:

[1, 2, 4, 5, 10, 20, 79, 131, 158, 262, 316, 395, 524, 655, 790, 1031, 1310, 1580, 2062, 2620, 4124, 5155, 10310, 10349, 20620, 20698, 41396, 51745, 81449, 103490, 135061, 162898, 206980, 270122, 325796, 407245, 540244, 675305, 814490, 1350610, 1628980, 2701220, 10669819, 21339638, 42679276, 53349095, 106698190, 213396380]

約数ペア:

[(1, 213396380), (2, 106698190), (4, 53349095), (5, 42679276), (10, 21339638), (20, 10669819), (79, 2701220), (131, 1628980), (158, 1350610), (262, 814490), (316, 675305), (395, 540244), (524, 407245), (655, 325796), (790, 270122), (1031, 206980), (1310, 162898), (1580, 135061), (2062, 103490), (2620, 81449), (4124, 51745), (5155, 41396), (10310, 20698), (10349, 20620)]