19966764016

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{271}}^1\times {\mathrm{1637}}^1$

素因数の和:2042

約数の個数: 80

約数和(自身を含む): 40606151040

約数和(自身を除く): 20639387024

約数列:

[1, 2, 4, 8, 16, 29, 58, 97, 116, 194, 232, 271, 388, 464, 542, 776, 1084, 1552, 1637, 2168, 2813, 3274, 4336, 5626, 6548, 7859, 11252, 13096, 15718, 22504, 26192, 26287, 31436, 45008, 47473, 52574, 62872, 94946, 105148, 125744, 158789, 189892, 210296, 317578, 379784, 420592, 443627, 635156, 759568, 762323, 887254, 1270312, 1524646, 1774508, 2540624, 3049292, 3549016, 4604881, 6098584, 7098032, 9209762, 12197168, 12865183, 18419524, 25730366, 36839048, 43031819, 51460732, 73678096, 86063638, 102921464, 172127276, 205842928, 344254552, 688509104, 1247922751, 2495845502, 4991691004, 9983382008, 19966764016]

約数ペア:

[(1, 19966764016), (2, 9983382008), (4, 4991691004), (8, 2495845502), (16, 1247922751), (29, 688509104), (58, 344254552), (97, 205842928), (116, 172127276), (194, 102921464), (232, 86063638), (271, 73678096), (388, 51460732), (464, 43031819), (542, 36839048), (776, 25730366), (1084, 18419524), (1552, 12865183), (1637, 12197168), (2168, 9209762), (2813, 7098032), (3274, 6098584), (4336, 4604881), (5626, 3549016), (6548, 3049292), (7859, 2540624), (11252, 1774508), (13096, 1524646), (15718, 1270312), (22504, 887254), (26192, 762323), (26287, 759568), (31436, 635156), (45008, 443627), (47473, 420592), (52574, 379784), (62872, 317578), (94946, 210296), (105148, 189892), (125744, 158789)]