20587510

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{347}}^1\times {\mathrm{349}}^1$

素因数の和:720

約数の個数: 32

約数和(自身を含む): 39463200

約数和(自身を除く): 18875690

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 347, 349, 694, 698, 1735, 1745, 3470, 3490, 5899, 5933, 11798, 11866, 29495, 29665, 58990, 59330, 121103, 242206, 605515, 1211030, 2058751, 4117502, 10293755, 20587510]

約数ペア:

[(1, 20587510), (2, 10293755), (5, 4117502), (10, 2058751), (17, 1211030), (34, 605515), (85, 242206), (170, 121103), (347, 59330), (349, 58990), (694, 29665), (698, 29495), (1735, 11866), (1745, 11798), (3470, 5933), (3490, 5899)]