78869720

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{29429}}^1$

素因数の和:29507

約数の個数: 32

約数和(自身を含む): 180111600

約数和(自身を除く): 101241880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 29429, 58858, 117716, 147145, 235432, 294290, 588580, 1177160, 1971743, 3943486, 7886972, 9858715, 15773944, 19717430, 39434860, 78869720]

約数ペア:

[(1, 78869720), (2, 39434860), (4, 19717430), (5, 15773944), (8, 9858715), (10, 7886972), (20, 3943486), (40, 1971743), (67, 1177160), (134, 588580), (268, 294290), (335, 235432), (536, 147145), (670, 117716), (1340, 58858), (2680, 29429)]