2008697860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{21401}}^1$

素因数の和:21461

約数の個数: 72

約数和(自身を含む): 4794647256

約数和(自身を除く): 2785949396

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 361, 380, 494, 722, 988, 1235, 1444, 1805, 2470, 3610, 4693, 4940, 7220, 9386, 18772, 21401, 23465, 42802, 46930, 85604, 93860, 107005, 214010, 278213, 406619, 428020, 556426, 813238, 1112852, 1391065, 1626476, 2033095, 2782130, 4066190, 5286047, 5564260, 7725761, 8132380, 10572094, 15451522, 21144188, 26430235, 30903044, 38628805, 52860470, 77257610, 100434893, 105720940, 154515220, 200869786, 401739572, 502174465, 1004348930, 2008697860]

約数ペア:

[(1, 2008697860), (2, 1004348930), (4, 502174465), (5, 401739572), (10, 200869786), (13, 154515220), (19, 105720940), (20, 100434893), (26, 77257610), (38, 52860470), (52, 38628805), (65, 30903044), (76, 26430235), (95, 21144188), (130, 15451522), (190, 10572094), (247, 8132380), (260, 7725761), (361, 5564260), (380, 5286047), (494, 4066190), (722, 2782130), (988, 2033095), (1235, 1626476), (1444, 1391065), (1805, 1112852), (2470, 813238), (3610, 556426), (4693, 428020), (4940, 406619), (7220, 278213), (9386, 214010), (18772, 107005), (21401, 93860), (23465, 85604), (42802, 46930)]