80399396

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{419}}^1$

素因数の和:537

約数の個数: 72

約数和(自身を含む): 180986400

約数和(自身を除く): 100587004

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 89, 98, 154, 178, 196, 308, 356, 419, 539, 623, 838, 979, 1078, 1246, 1676, 1958, 2156, 2492, 2933, 3916, 4361, 4609, 5866, 6853, 8722, 9218, 11732, 13706, 17444, 18436, 20531, 27412, 32263, 37291, 41062, 47971, 64526, 74582, 82124, 95942, 129052, 149164, 191884, 225841, 261037, 410201, 451682, 522074, 820402, 903364, 1044148, 1640804, 1827259, 2871407, 3654518, 5742814, 7309036, 11485628, 20099849, 40199698, 80399396]

約数ペア:

[(1, 80399396), (2, 40199698), (4, 20099849), (7, 11485628), (11, 7309036), (14, 5742814), (22, 3654518), (28, 2871407), (44, 1827259), (49, 1640804), (77, 1044148), (89, 903364), (98, 820402), (154, 522074), (178, 451682), (196, 410201), (308, 261037), (356, 225841), (419, 191884), (539, 149164), (623, 129052), (838, 95942), (979, 82124), (1078, 74582), (1246, 64526), (1676, 47971), (1958, 41062), (2156, 37291), (2492, 32263), (2933, 27412), (3916, 20531), (4361, 18436), (4609, 17444), (5866, 13706), (6853, 11732), (8722, 9218)]