68321640140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{20213503}}^1$

素因数の和:20213538

約数の個数: 36

約数和(自身を含む): 155360991744

約数和(自身を除く): 87039351604

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 20213503, 40427006, 80854012, 101067515, 202135030, 262775539, 404270060, 525551078, 1051102156, 1313877695, 2627755390, 3416082007, 5255510780, 6832164014, 13664328028, 17080410035, 34160820070, 68321640140]

約数ペア:

[(1, 68321640140), (2, 34160820070), (4, 17080410035), (5, 13664328028), (10, 6832164014), (13, 5255510780), (20, 3416082007), (26, 2627755390), (52, 1313877695), (65, 1051102156), (130, 525551078), (169, 404270060), (260, 262775539), (338, 202135030), (676, 101067515), (845, 80854012), (1690, 40427006), (3380, 20213503)]