71218820

素因数分解:

$2^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{21323}}^1$

素因数の和:21499

約数の個数: 24

約数和(自身を含む): 150462144

約数和(自身を除く): 79243324

約数列:

[1, 2, 4, 5, 10, 20, 167, 334, 668, 835, 1670, 3340, 21323, 42646, 85292, 106615, 213230, 426460, 3560941, 7121882, 14243764, 17804705, 35609410, 71218820]

約数ペア:

[(1, 71218820), (2, 35609410), (4, 17804705), (5, 14243764), (10, 7121882), (20, 3560941), (167, 426460), (334, 213230), (668, 106615), (835, 85292), (1670, 42646), (3340, 21323)]