168694840

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{113983}}^1$

素因数の和:114031

約数の個数: 32

約数和(自身を含む): 389825280

約数和(自身を除く): 221130440

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 113983, 227966, 455932, 569915, 911864, 1139830, 2279660, 4217371, 4559320, 8434742, 16869484, 21086855, 33738968, 42173710, 84347420, 168694840]

約数ペア:

[(1, 168694840), (2, 84347420), (4, 42173710), (5, 33738968), (8, 21086855), (10, 16869484), (20, 8434742), (37, 4559320), (40, 4217371), (74, 2279660), (148, 1139830), (185, 911864), (296, 569915), (370, 455932), (740, 227966), (1480, 113983)]