1640779952

素因数分解:

$2^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{1753}}^1$

素因数の和:1966

約数の個数: 80

約数和(自身を含む): 3721791552

約数和(自身を除く): 2081011600

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 61, 112, 122, 137, 244, 274, 427, 488, 548, 854, 959, 976, 1096, 1708, 1753, 1918, 2192, 3416, 3506, 3836, 6832, 7012, 7672, 8357, 12271, 14024, 15344, 16714, 24542, 28048, 33428, 49084, 58499, 66856, 98168, 106933, 116998, 133712, 196336, 213866, 233996, 240161, 427732, 467992, 480322, 748531, 855464, 935984, 960644, 1497062, 1681127, 1710928, 1921288, 2994124, 3362254, 3842576, 5988248, 6724508, 11976496, 13449016, 14649821, 26898032, 29299642, 58599284, 102548747, 117198568, 205097494, 234397136, 410194988, 820389976, 1640779952]

約数ペア:

[(1, 1640779952), (2, 820389976), (4, 410194988), (7, 234397136), (8, 205097494), (14, 117198568), (16, 102548747), (28, 58599284), (56, 29299642), (61, 26898032), (112, 14649821), (122, 13449016), (137, 11976496), (244, 6724508), (274, 5988248), (427, 3842576), (488, 3362254), (548, 2994124), (854, 1921288), (959, 1710928), (976, 1681127), (1096, 1497062), (1708, 960644), (1753, 935984), (1918, 855464), (2192, 748531), (3416, 480322), (3506, 467992), (3836, 427732), (6832, 240161), (7012, 233996), (7672, 213866), (8357, 196336), (12271, 133712), (14024, 116998), (15344, 106933), (16714, 98168), (24542, 66856), (28048, 58499), (33428, 49084)]