2161420

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1613}}^1$

素因数の和:1689

約数の個数: 24

約数和(自身を含む): 4609584

約数和(自身を除く): 2448164

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 1613, 3226, 6452, 8065, 16130, 32260, 108071, 216142, 432284, 540355, 1080710, 2161420]

約数ペア:

[(1, 2161420), (2, 1080710), (4, 540355), (5, 432284), (10, 216142), (20, 108071), (67, 32260), (134, 16130), (268, 8065), (335, 6452), (670, 3226), (1340, 1613)]