78497020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{173}}^1\times {\mathrm{463}}^1$

素因数の和:659

約数の個数: 72

約数和(自身を含む): 193281984

約数和(自身を除く): 114784964

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 173, 196, 245, 346, 463, 490, 692, 865, 926, 980, 1211, 1730, 1852, 2315, 2422, 3241, 3460, 4630, 4844, 6055, 6482, 8477, 9260, 12110, 12964, 16205, 16954, 22687, 24220, 32410, 33908, 42385, 45374, 64820, 80099, 84770, 90748, 113435, 160198, 169540, 226870, 320396, 400495, 453740, 560693, 800990, 1121386, 1601980, 2242772, 2803465, 3924851, 5606930, 7849702, 11213860, 15699404, 19624255, 39248510, 78497020]

約数ペア:

[(1, 78497020), (2, 39248510), (4, 19624255), (5, 15699404), (7, 11213860), (10, 7849702), (14, 5606930), (20, 3924851), (28, 2803465), (35, 2242772), (49, 1601980), (70, 1121386), (98, 800990), (140, 560693), (173, 453740), (196, 400495), (245, 320396), (346, 226870), (463, 169540), (490, 160198), (692, 113435), (865, 90748), (926, 84770), (980, 80099), (1211, 64820), (1730, 45374), (1852, 42385), (2315, 33908), (2422, 32410), (3241, 24220), (3460, 22687), (4630, 16954), (4844, 16205), (6055, 12964), (6482, 12110), (8477, 9260)]