20645670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{4951}}^1$

素因数の和:5100

約数の個数: 32

約数和(自身を含む): 49916160

約数和(自身を除く): 29270490

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 139, 278, 417, 695, 834, 1390, 2085, 4170, 4951, 9902, 14853, 24755, 29706, 49510, 74265, 148530, 688189, 1376378, 2064567, 3440945, 4129134, 6881890, 10322835, 20645670]

約数ペア:

[(1, 20645670), (2, 10322835), (3, 6881890), (5, 4129134), (6, 3440945), (10, 2064567), (15, 1376378), (30, 688189), (139, 148530), (278, 74265), (417, 49510), (695, 29706), (834, 24755), (1390, 14853), (2085, 9902), (4170, 4951)]