129334540

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{1489}}^1$

素因数の和:1642

約数の個数: 48

約数和(自身を含む): 280859040

約数和(自身を除く): 151524500

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 101, 172, 202, 215, 404, 430, 505, 860, 1010, 1489, 2020, 2978, 4343, 5956, 7445, 8686, 14890, 17372, 21715, 29780, 43430, 64027, 86860, 128054, 150389, 256108, 300778, 320135, 601556, 640270, 751945, 1280540, 1503890, 3007780, 6466727, 12933454, 25866908, 32333635, 64667270, 129334540]

約数ペア:

[(1, 129334540), (2, 64667270), (4, 32333635), (5, 25866908), (10, 12933454), (20, 6466727), (43, 3007780), (86, 1503890), (101, 1280540), (172, 751945), (202, 640270), (215, 601556), (404, 320135), (430, 300778), (505, 256108), (860, 150389), (1010, 128054), (1489, 86860), (2020, 64027), (2978, 43430), (4343, 29780), (5956, 21715), (7445, 17372), (8686, 14890)]