518380420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{7621}}^1$

素因数の和:7828

約数の個数: 48

約数和(自身を含む): 1152446400

約数和(自身を除く): 634065980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 179, 190, 358, 380, 716, 895, 1790, 3401, 3580, 6802, 7621, 13604, 15242, 17005, 30484, 34010, 38105, 68020, 76210, 144799, 152420, 289598, 579196, 723995, 1364159, 1447990, 2728318, 2895980, 5456636, 6820795, 13641590, 25919021, 27283180, 51838042, 103676084, 129595105, 259190210, 518380420]

約数ペア:

[(1, 518380420), (2, 259190210), (4, 129595105), (5, 103676084), (10, 51838042), (19, 27283180), (20, 25919021), (38, 13641590), (76, 6820795), (95, 5456636), (179, 2895980), (190, 2728318), (358, 1447990), (380, 1364159), (716, 723995), (895, 579196), (1790, 289598), (3401, 152420), (3580, 144799), (6802, 76210), (7621, 68020), (13604, 38105), (15242, 34010), (17005, 30484)]