201294640

素因数分解:

$2^4\times 5^1\times {\mathrm{647}}^1\times {\mathrm{3889}}^1$

素因数の和:4549

約数の個数: 40

約数和(自身を含む): 468853920

約数和(自身を除く): 267559280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 647, 1294, 2588, 3235, 3889, 5176, 6470, 7778, 10352, 12940, 15556, 19445, 25880, 31112, 38890, 51760, 62224, 77780, 155560, 311120, 2516183, 5032366, 10064732, 12580915, 20129464, 25161830, 40258928, 50323660, 100647320, 201294640]

約数ペア:

[(1, 201294640), (2, 100647320), (4, 50323660), (5, 40258928), (8, 25161830), (10, 20129464), (16, 12580915), (20, 10064732), (40, 5032366), (80, 2516183), (647, 311120), (1294, 155560), (2588, 77780), (3235, 62224), (3889, 51760), (5176, 38890), (6470, 31112), (7778, 25880), (10352, 19445), (12940, 15556)]