79551640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:245

約数の個数: 128

約数和(自身を含む): 215913600

約数和(自身を除く): 136361960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 97, 101, 116, 140, 145, 194, 202, 203, 232, 280, 290, 388, 404, 406, 485, 505, 580, 679, 707, 776, 808, 812, 970, 1010, 1015, 1160, 1358, 1414, 1624, 1940, 2020, 2030, 2716, 2813, 2828, 2929, 3395, 3535, 3880, 4040, 4060, 5432, 5626, 5656, 5858, 6790, 7070, 8120, 9797, 11252, 11716, 13580, 14065, 14140, 14645, 19594, 19691, 20503, 22504, 23432, 27160, 28130, 28280, 29290, 39188, 39382, 41006, 48985, 56260, 58580, 68579, 78376, 78764, 82012, 97970, 98455, 102515, 112520, 117160, 137158, 157528, 164024, 195940, 196910, 205030, 274316, 284113, 342895, 391880, 393820, 410060, 548632, 568226, 685790, 787640, 820120, 1136452, 1371580, 1420565, 1988791, 2272904, 2743160, 2841130, 3977582, 5682260, 7955164, 9943955, 11364520, 15910328, 19887910, 39775820, 79551640]

約数ペア:

[(1, 79551640), (2, 39775820), (4, 19887910), (5, 15910328), (7, 11364520), (8, 9943955), (10, 7955164), (14, 5682260), (20, 3977582), (28, 2841130), (29, 2743160), (35, 2272904), (40, 1988791), (56, 1420565), (58, 1371580), (70, 1136452), (97, 820120), (101, 787640), (116, 685790), (140, 568226), (145, 548632), (194, 410060), (202, 393820), (203, 391880), (232, 342895), (280, 284113), (290, 274316), (388, 205030), (404, 196910), (406, 195940), (485, 164024), (505, 157528), (580, 137158), (679, 117160), (707, 112520), (776, 102515), (808, 98455), (812, 97970), (970, 82012), (1010, 78764), (1015, 78376), (1160, 68579), (1358, 58580), (1414, 56260), (1624, 48985), (1940, 41006), (2020, 39382), (2030, 39188), (2716, 29290), (2813, 28280), (2828, 28130), (2929, 27160), (3395, 23432), (3535, 22504), (3880, 20503), (4040, 19691), (4060, 19594), (5432, 14645), (5626, 14140), (5656, 14065), (5858, 13580), (6790, 11716), (7070, 11252), (8120, 9797)]