68681560

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{41879}}^1$

素因数の和:41931

約数の個数: 32

約数和(自身を含む): 158306400

約数和(自身を除く): 89624840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 41879, 83758, 167516, 209395, 335032, 418790, 837580, 1675160, 1717039, 3434078, 6868156, 8585195, 13736312, 17170390, 34340780, 68681560]

約数ペア:

[(1, 68681560), (2, 34340780), (4, 17170390), (5, 13736312), (8, 8585195), (10, 6868156), (20, 3434078), (40, 1717039), (41, 1675160), (82, 837580), (164, 418790), (205, 335032), (328, 209395), (410, 167516), (820, 83758), (1640, 41879)]