20771110

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2003}}^1$

素因数の和:2088

約数の個数: 32

約数和(自身を含む): 40256352

約数和(自身を除く): 19485242

約数列:

[1, 2, 5, 10, 17, 34, 61, 85, 122, 170, 305, 610, 1037, 2003, 2074, 4006, 5185, 10015, 10370, 20030, 34051, 68102, 122183, 170255, 244366, 340510, 610915, 1221830, 2077111, 4154222, 10385555, 20771110]

約数ペア:

[(1, 20771110), (2, 10385555), (5, 4154222), (10, 2077111), (17, 1221830), (34, 610915), (61, 340510), (85, 244366), (122, 170255), (170, 122183), (305, 68102), (610, 34051), (1037, 20030), (2003, 10370), (2074, 10015), (4006, 5185)]