86908690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:307

約数の個数: 64

約数和(自身を含む): 176463360

約数和(自身を除く): 89554670

約数列:

[1, 2, 5, 10, 11, 22, 55, 73, 79, 110, 137, 146, 158, 274, 365, 395, 685, 730, 790, 803, 869, 1370, 1507, 1606, 1738, 3014, 4015, 4345, 5767, 7535, 8030, 8690, 10001, 10823, 11534, 15070, 20002, 21646, 28835, 50005, 54115, 57670, 63437, 100010, 108230, 110011, 119053, 126874, 220022, 238106, 317185, 550055, 595265, 634370, 790079, 1100110, 1190530, 1580158, 3950395, 7900790, 8690869, 17381738, 43454345, 86908690]

約数ペア:

[(1, 86908690), (2, 43454345), (5, 17381738), (10, 8690869), (11, 7900790), (22, 3950395), (55, 1580158), (73, 1190530), (79, 1100110), (110, 790079), (137, 634370), (146, 595265), (158, 550055), (274, 317185), (365, 238106), (395, 220022), (685, 126874), (730, 119053), (790, 110011), (803, 108230), (869, 100010), (1370, 63437), (1507, 57670), (1606, 54115), (1738, 50005), (3014, 28835), (4015, 21646), (4345, 20002), (5767, 15070), (7535, 11534), (8030, 10823), (8690, 10001)]