278810870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{35159}}^1$

素因数の和:35240

約数の個数: 32

約数和(自身を含む): 549339840

約数和(自身を除く): 270528970

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 305, 610, 793, 1586, 3965, 7930, 35159, 70318, 175795, 351590, 457067, 914134, 2144699, 2285335, 4289398, 4570670, 10723495, 21446990, 27881087, 55762174, 139405435, 278810870]

約数ペア:

[(1, 278810870), (2, 139405435), (5, 55762174), (10, 27881087), (13, 21446990), (26, 10723495), (61, 4570670), (65, 4289398), (122, 2285335), (130, 2144699), (305, 914134), (610, 457067), (793, 351590), (1586, 175795), (3965, 70318), (7930, 35159)]