20883230

素因数分解:

$2^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{439}}^1$

素因数の和:584

約数の個数: 32

約数和(自身を含む): 38776320

約数和(自身を除く): 17893090

約数列:

[1, 2, 5, 10, 67, 71, 134, 142, 335, 355, 439, 670, 710, 878, 2195, 4390, 4757, 9514, 23785, 29413, 31169, 47570, 58826, 62338, 147065, 155845, 294130, 311690, 2088323, 4176646, 10441615, 20883230]

約数ペア:

[(1, 20883230), (2, 10441615), (5, 4176646), (10, 2088323), (67, 311690), (71, 294130), (134, 155845), (142, 147065), (335, 62338), (355, 58826), (439, 47570), (670, 31169), (710, 29413), (878, 23785), (2195, 9514), (4390, 4757)]