202640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1$

素因数の和:179

約数の個数: 40

約数和(自身を含む): 502200

約数和(自身を除く): 299560

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 149, 170, 272, 298, 340, 596, 680, 745, 1192, 1360, 1490, 2384, 2533, 2980, 5066, 5960, 10132, 11920, 12665, 20264, 25330, 40528, 50660, 101320, 202640]

約数ペア:

[(1, 202640), (2, 101320), (4, 50660), (5, 40528), (8, 25330), (10, 20264), (16, 12665), (17, 11920), (20, 10132), (34, 5960), (40, 5066), (68, 2980), (80, 2533), (85, 2384), (136, 1490), (149, 1360), (170, 1192), (272, 745), (298, 680), (340, 596)]