68122990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{2039}}^1$

素因数の和:2316

約数の個数: 32

約数和(自身を含む): 132632640

約数和(自身を除く): 64509650

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 257, 514, 1285, 2039, 2570, 3341, 4078, 6682, 10195, 16705, 20390, 26507, 33410, 53014, 132535, 265070, 524023, 1048046, 2620115, 5240230, 6812299, 13624598, 34061495, 68122990]

約数ペア:

[(1, 68122990), (2, 34061495), (5, 13624598), (10, 6812299), (13, 5240230), (26, 2620115), (65, 1048046), (130, 524023), (257, 265070), (514, 132535), (1285, 53014), (2039, 33410), (2570, 26507), (3341, 20390), (4078, 16705), (6682, 10195)]