656665664005

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{317321}}^1$

素因数の和:317462

約数の個数: 48

約数和(自身を含む): 891954063360

約数和(自身を除く): 235288399355

約数列:

[1, 5, 13, 31, 65, 79, 155, 169, 395, 403, 845, 1027, 2015, 2449, 5135, 5239, 12245, 13351, 26195, 31837, 66755, 159185, 317321, 413881, 1586605, 2069405, 4125173, 9836951, 20625865, 25068359, 49184755, 53627249, 125341795, 127880363, 268136245, 325888667, 639401815, 777119129, 1629443335, 1662444719, 3885595645, 4236552671, 8312223595, 10102548677, 21182763355, 50512743385, 131333132801, 656665664005]

約数ペア:

[(1, 656665664005), (5, 131333132801), (13, 50512743385), (31, 21182763355), (65, 10102548677), (79, 8312223595), (155, 4236552671), (169, 3885595645), (395, 1662444719), (403, 1629443335), (845, 777119129), (1027, 639401815), (2015, 325888667), (2449, 268136245), (5135, 127880363), (5239, 125341795), (12245, 53627249), (13351, 49184755), (26195, 25068359), (31837, 20625865), (66755, 9836951), (159185, 4125173), (317321, 2069405), (413881, 1586605)]