289301240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{425443}}^1$

素因数の和:425471

約数の個数: 32

約数和(自身を含む): 689219280

約数和(自身を除く): 399918040

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 425443, 850886, 1701772, 2127215, 3403544, 4254430, 7232531, 8508860, 14465062, 17017720, 28930124, 36162655, 57860248, 72325310, 144650620, 289301240]

約数ペア:

[(1, 289301240), (2, 144650620), (4, 72325310), (5, 57860248), (8, 36162655), (10, 28930124), (17, 17017720), (20, 14465062), (34, 8508860), (40, 7232531), (68, 4254430), (85, 3403544), (136, 2127215), (170, 1701772), (340, 850886), (680, 425443)]