79666100

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{191}}^1$

素因数の和:345

約数の個数: 72

約数和(自身を含む): 179655168

約数和(自身を除く): 99989068

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 97, 100, 172, 191, 194, 215, 382, 388, 430, 485, 764, 860, 955, 970, 1075, 1910, 1940, 2150, 2425, 3820, 4171, 4300, 4775, 4850, 8213, 8342, 9550, 9700, 16426, 16684, 18527, 19100, 20855, 32852, 37054, 41065, 41710, 74108, 82130, 83420, 92635, 104275, 164260, 185270, 205325, 208550, 370540, 410650, 417100, 463175, 796661, 821300, 926350, 1593322, 1852700, 3186644, 3983305, 7966610, 15933220, 19916525, 39833050, 79666100]

約数ペア:

[(1, 79666100), (2, 39833050), (4, 19916525), (5, 15933220), (10, 7966610), (20, 3983305), (25, 3186644), (43, 1852700), (50, 1593322), (86, 926350), (97, 821300), (100, 796661), (172, 463175), (191, 417100), (194, 410650), (215, 370540), (382, 208550), (388, 205325), (430, 185270), (485, 164260), (764, 104275), (860, 92635), (955, 83420), (970, 82130), (1075, 74108), (1910, 41710), (1940, 41065), (2150, 37054), (2425, 32852), (3820, 20855), (4171, 19100), (4300, 18527), (4775, 16684), (4850, 16426), (8213, 9700), (8342, 9550)]