90987760

素因数分解:

$2^4\times 5^1\times {\mathrm{947}}^1\times {\mathrm{1201}}^1$

素因数の和:2161

約数の個数: 40

約数和(自身を含む): 211946256

約数和(自身を除く): 120958496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 947, 1201, 1894, 2402, 3788, 4735, 4804, 6005, 7576, 9470, 9608, 12010, 15152, 18940, 19216, 24020, 37880, 48040, 75760, 96080, 1137347, 2274694, 4549388, 5686735, 9098776, 11373470, 18197552, 22746940, 45493880, 90987760]

約数ペア:

[(1, 90987760), (2, 45493880), (4, 22746940), (5, 18197552), (8, 11373470), (10, 9098776), (16, 5686735), (20, 4549388), (40, 2274694), (80, 1137347), (947, 96080), (1201, 75760), (1894, 48040), (2402, 37880), (3788, 24020), (4735, 19216), (4804, 18940), (6005, 15152), (7576, 12010), (9470, 9608)]