20152990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{829}}^1$

素因数の和:877

約数の個数: 64

約数和(自身を含む): 45178560

約数和(自身を除く): 25025570

約数列:

[1, 2, 5, 10, 11, 13, 17, 22, 26, 34, 55, 65, 85, 110, 130, 143, 170, 187, 221, 286, 374, 442, 715, 829, 935, 1105, 1430, 1658, 1870, 2210, 2431, 4145, 4862, 8290, 9119, 10777, 12155, 14093, 18238, 21554, 24310, 28186, 45595, 53885, 70465, 91190, 107770, 118547, 140930, 155023, 183209, 237094, 310046, 366418, 592735, 775115, 916045, 1185470, 1550230, 1832090, 2015299, 4030598, 10076495, 20152990]

約数ペア:

[(1, 20152990), (2, 10076495), (5, 4030598), (10, 2015299), (11, 1832090), (13, 1550230), (17, 1185470), (22, 916045), (26, 775115), (34, 592735), (55, 366418), (65, 310046), (85, 237094), (110, 183209), (130, 155023), (143, 140930), (170, 118547), (187, 107770), (221, 91190), (286, 70465), (374, 53885), (442, 45595), (715, 28186), (829, 24310), (935, 21554), (1105, 18238), (1430, 14093), (1658, 12155), (1870, 10777), (2210, 9119), (2431, 8290), (4145, 4862)]