20935850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1039}}^1$

素因数の和:1095

約数の個数: 48

約数和(自身を含む): 43330560

約数和(自身を除く): 22394710

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 650, 775, 806, 1039, 1550, 2015, 2078, 4030, 5195, 10075, 10390, 13507, 20150, 25975, 27014, 32209, 51950, 64418, 67535, 135070, 161045, 322090, 337675, 418717, 675350, 805225, 837434, 1610450, 2093585, 4187170, 10467925, 20935850]

約数ペア:

[(1, 20935850), (2, 10467925), (5, 4187170), (10, 2093585), (13, 1610450), (25, 837434), (26, 805225), (31, 675350), (50, 418717), (62, 337675), (65, 322090), (130, 161045), (155, 135070), (310, 67535), (325, 64418), (403, 51950), (650, 32209), (775, 27014), (806, 25975), (1039, 20150), (1550, 13507), (2015, 10390), (2078, 10075), (4030, 5195)]