131489620

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{1451}}^1$

素因数の和:1680

約数の個数: 48

約数和(自身を含む): 289795968

約数和(自身を除く): 158306348

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 197, 230, 394, 460, 788, 985, 1451, 1970, 2902, 3940, 4531, 5804, 7255, 9062, 14510, 18124, 22655, 29020, 33373, 45310, 66746, 90620, 133492, 166865, 285847, 333730, 571694, 667460, 1143388, 1429235, 2858470, 5716940, 6574481, 13148962, 26297924, 32872405, 65744810, 131489620]

約数ペア:

[(1, 131489620), (2, 65744810), (4, 32872405), (5, 26297924), (10, 13148962), (20, 6574481), (23, 5716940), (46, 2858470), (92, 1429235), (115, 1143388), (197, 667460), (230, 571694), (394, 333730), (460, 285847), (788, 166865), (985, 133492), (1451, 90620), (1970, 66746), (2902, 45310), (3940, 33373), (4531, 29020), (5804, 22655), (7255, 18124), (9062, 14510)]