21554000

素因数分解:

$2^4\times 5^3\times {\mathrm{13}}^1\times {\mathrm{829}}^1$

素因数の和:865

約数の個数: 80

約数和(自身を含む): 56194320

約数和(自身を除く): 34640320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 125, 130, 200, 208, 250, 260, 325, 400, 500, 520, 650, 829, 1000, 1040, 1300, 1625, 1658, 2000, 2600, 3250, 3316, 4145, 5200, 6500, 6632, 8290, 10777, 13000, 13264, 16580, 20725, 21554, 26000, 33160, 41450, 43108, 53885, 66320, 82900, 86216, 103625, 107770, 165800, 172432, 207250, 215540, 269425, 331600, 414500, 431080, 538850, 829000, 862160, 1077700, 1347125, 1658000, 2155400, 2694250, 4310800, 5388500, 10777000, 21554000]

約数ペア:

[(1, 21554000), (2, 10777000), (4, 5388500), (5, 4310800), (8, 2694250), (10, 2155400), (13, 1658000), (16, 1347125), (20, 1077700), (25, 862160), (26, 829000), (40, 538850), (50, 431080), (52, 414500), (65, 331600), (80, 269425), (100, 215540), (104, 207250), (125, 172432), (130, 165800), (200, 107770), (208, 103625), (250, 86216), (260, 82900), (325, 66320), (400, 53885), (500, 43108), (520, 41450), (650, 33160), (829, 26000), (1000, 21554), (1040, 20725), (1300, 16580), (1625, 13264), (1658, 13000), (2000, 10777), (2600, 8290), (3250, 6632), (3316, 6500), (4145, 5200)]