645780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 1854720

約数和(自身を除く): 1208940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 94, 141, 188, 229, 235, 282, 458, 470, 564, 687, 705, 916, 940, 1145, 1374, 1410, 2290, 2748, 2820, 3435, 4580, 6870, 10763, 13740, 21526, 32289, 43052, 53815, 64578, 107630, 129156, 161445, 215260, 322890, 645780]

約数ペア:

[(1, 645780), (2, 322890), (3, 215260), (4, 161445), (5, 129156), (6, 107630), (10, 64578), (12, 53815), (15, 43052), (20, 32289), (30, 21526), (47, 13740), (60, 10763), (94, 6870), (141, 4580), (188, 3435), (229, 2820), (235, 2748), (282, 2290), (458, 1410), (470, 1374), (564, 1145), (687, 940), (705, 916)]