77590420

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{419}}^1$

素因数の和:672

約数の個数: 48

約数和(自身を含む): 167650560

約数和(自身を除く): 90060140

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 197, 235, 394, 419, 470, 788, 838, 940, 985, 1676, 1970, 2095, 3940, 4190, 8380, 9259, 18518, 19693, 37036, 39386, 46295, 78772, 82543, 92590, 98465, 165086, 185180, 196930, 330172, 393860, 412715, 825430, 1650860, 3879521, 7759042, 15518084, 19397605, 38795210, 77590420]

約数ペア:

[(1, 77590420), (2, 38795210), (4, 19397605), (5, 15518084), (10, 7759042), (20, 3879521), (47, 1650860), (94, 825430), (188, 412715), (197, 393860), (235, 330172), (394, 196930), (419, 185180), (470, 165086), (788, 98465), (838, 92590), (940, 82543), (985, 78772), (1676, 46295), (1970, 39386), (2095, 37036), (3940, 19693), (4190, 18518), (8380, 9259)]