1818640

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{179}}^1$

素因数の和:319

約数の個数: 40

約数和(自身を含む): 4285440

約数和(自身を除く): 2466800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 179, 254, 358, 508, 635, 716, 895, 1016, 1270, 1432, 1790, 2032, 2540, 2864, 3580, 5080, 7160, 10160, 14320, 22733, 45466, 90932, 113665, 181864, 227330, 363728, 454660, 909320, 1818640]

約数ペア:

[(1, 1818640), (2, 909320), (4, 454660), (5, 363728), (8, 227330), (10, 181864), (16, 113665), (20, 90932), (40, 45466), (80, 22733), (127, 14320), (179, 10160), (254, 7160), (358, 5080), (508, 3580), (635, 2864), (716, 2540), (895, 2032), (1016, 1790), (1270, 1432)]