81607656

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{261563}}^1$

素因数の和:261585

約数の個数: 32

約数和(自身を含む): 219713760

約数和(自身を除く): 138106104

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 261563, 523126, 784689, 1046252, 1569378, 2092504, 3138756, 3400319, 6277512, 6800638, 10200957, 13601276, 20401914, 27202552, 40803828, 81607656]

約数ペア:

[(1, 81607656), (2, 40803828), (3, 27202552), (4, 20401914), (6, 13601276), (8, 10200957), (12, 6800638), (13, 6277512), (24, 3400319), (26, 3138756), (39, 2092504), (52, 1569378), (78, 1046252), (104, 784689), (156, 523126), (312, 261563)]