72777740

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{103}}^2$

素因数の和:236

約数の個数: 72

約数和(自身を含む): 179978400

約数和(自身を除く): 107200660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 103, 140, 196, 206, 245, 343, 412, 490, 515, 686, 721, 980, 1030, 1372, 1442, 1715, 2060, 2884, 3430, 3605, 5047, 6860, 7210, 10094, 10609, 14420, 20188, 21218, 25235, 35329, 42436, 50470, 53045, 70658, 74263, 100940, 106090, 141316, 148526, 176645, 212180, 297052, 353290, 371315, 519841, 706580, 742630, 1039682, 1485260, 2079364, 2599205, 3638887, 5198410, 7277774, 10396820, 14555548, 18194435, 36388870, 72777740]

約数ペア:

[(1, 72777740), (2, 36388870), (4, 18194435), (5, 14555548), (7, 10396820), (10, 7277774), (14, 5198410), (20, 3638887), (28, 2599205), (35, 2079364), (49, 1485260), (70, 1039682), (98, 742630), (103, 706580), (140, 519841), (196, 371315), (206, 353290), (245, 297052), (343, 212180), (412, 176645), (490, 148526), (515, 141316), (686, 106090), (721, 100940), (980, 74263), (1030, 70658), (1372, 53045), (1442, 50470), (1715, 42436), (2060, 35329), (2884, 25235), (3430, 21218), (3605, 20188), (5047, 14420), (6860, 10609), (7210, 10094)]