68478020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{3931}}^1$

素因数の和:4020

約数の個数: 48

約数和(自身を含む): 157217088

約数和(自身を除く): 88739068

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1340, 1742, 3484, 3931, 4355, 7862, 8710, 15724, 17420, 19655, 39310, 51103, 78620, 102206, 204412, 255515, 263377, 511030, 526754, 1022060, 1053508, 1316885, 2633770, 3423901, 5267540, 6847802, 13695604, 17119505, 34239010, 68478020]

約数ペア:

[(1, 68478020), (2, 34239010), (4, 17119505), (5, 13695604), (10, 6847802), (13, 5267540), (20, 3423901), (26, 2633770), (52, 1316885), (65, 1053508), (67, 1022060), (130, 526754), (134, 511030), (260, 263377), (268, 255515), (335, 204412), (670, 102206), (871, 78620), (1340, 51103), (1742, 39310), (3484, 19655), (3931, 17420), (4355, 15724), (7862, 8710)]