640140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 1838592

約数和(自身を除く): 1198452

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 94, 141, 188, 227, 235, 282, 454, 470, 564, 681, 705, 908, 940, 1135, 1362, 1410, 2270, 2724, 2820, 3405, 4540, 6810, 10669, 13620, 21338, 32007, 42676, 53345, 64014, 106690, 128028, 160035, 213380, 320070, 640140]

約数ペア:

[(1, 640140), (2, 320070), (3, 213380), (4, 160035), (5, 128028), (6, 106690), (10, 64014), (12, 53345), (15, 42676), (20, 32007), (30, 21338), (47, 13620), (60, 10669), (94, 6810), (141, 4540), (188, 3405), (227, 2820), (235, 2724), (282, 2270), (454, 1410), (470, 1362), (564, 1135), (681, 940), (705, 908)]