28344580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6781}}^1$

素因数の和:6820

約数の個数: 48

約数和(自身を含む): 68362560

約数和(自身を除く): 40017980

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 6781, 13562, 27124, 33905, 67810, 74591, 128839, 135620, 149182, 257678, 298364, 372955, 515356, 644195, 745910, 1288390, 1417229, 1491820, 2576780, 2834458, 5668916, 7086145, 14172290, 28344580]

約数ペア:

[(1, 28344580), (2, 14172290), (4, 7086145), (5, 5668916), (10, 2834458), (11, 2576780), (19, 1491820), (20, 1417229), (22, 1288390), (38, 745910), (44, 644195), (55, 515356), (76, 372955), (95, 298364), (110, 257678), (190, 149182), (209, 135620), (220, 128839), (380, 74591), (418, 67810), (836, 33905), (1045, 27124), (2090, 13562), (4180, 6781)]