16657540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{401}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 36739584

約数和(自身を除く): 20082044

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 67, 124, 134, 155, 268, 310, 335, 401, 620, 670, 802, 1340, 1604, 2005, 2077, 4010, 4154, 8020, 8308, 10385, 12431, 20770, 24862, 26867, 41540, 49724, 53734, 62155, 107468, 124310, 134335, 248620, 268670, 537340, 832877, 1665754, 3331508, 4164385, 8328770, 16657540]

約数ペア:

[(1, 16657540), (2, 8328770), (4, 4164385), (5, 3331508), (10, 1665754), (20, 832877), (31, 537340), (62, 268670), (67, 248620), (124, 134335), (134, 124310), (155, 107468), (268, 62155), (310, 53734), (335, 49724), (401, 41540), (620, 26867), (670, 24862), (802, 20770), (1340, 12431), (1604, 10385), (2005, 8308), (2077, 8020), (4010, 4154)]