81645122

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1\times {\mathrm{331}}^1$

素因数の和:578

約数の個数: 32

約数和(自身を含む): 135535680

約数和(自身を除く): 53890558

約数列:

[1, 2, 13, 26, 53, 106, 179, 331, 358, 662, 689, 1378, 2327, 4303, 4654, 8606, 9487, 17543, 18974, 35086, 59249, 118498, 123331, 228059, 246662, 456118, 770237, 1540474, 3140197, 6280394, 40822561, 81645122]

約数ペア:

[(1, 81645122), (2, 40822561), (13, 6280394), (26, 3140197), (53, 1540474), (106, 770237), (179, 456118), (331, 246662), (358, 228059), (662, 123331), (689, 118498), (1378, 59249), (2327, 35086), (4303, 18974), (4654, 17543), (8606, 9487)]