223780

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{167}}^1$

素因数の和:243

約数の個数: 24

約数和(自身を含む): 479808

約数和(自身を除く): 256028

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 167, 268, 334, 335, 668, 670, 835, 1340, 1670, 3340, 11189, 22378, 44756, 55945, 111890, 223780]

約数ペア:

[(1, 223780), (2, 111890), (4, 55945), (5, 44756), (10, 22378), (20, 11189), (67, 3340), (134, 1670), (167, 1340), (268, 835), (334, 670), (335, 668)]