77728720

素因数分解:

$2^4\times 5^1\times {\mathrm{809}}^1\times {\mathrm{1201}}^1$

素因数の和:2023

約数の個数: 40

約数和(自身を含む): 181093320

約数和(自身を除く): 103364600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 809, 1201, 1618, 2402, 3236, 4045, 4804, 6005, 6472, 8090, 9608, 12010, 12944, 16180, 19216, 24020, 32360, 48040, 64720, 96080, 971609, 1943218, 3886436, 4858045, 7772872, 9716090, 15545744, 19432180, 38864360, 77728720]

約数ペア:

[(1, 77728720), (2, 38864360), (4, 19432180), (5, 15545744), (8, 9716090), (10, 7772872), (16, 4858045), (20, 3886436), (40, 1943218), (80, 971609), (809, 96080), (1201, 64720), (1618, 48040), (2402, 32360), (3236, 24020), (4045, 19216), (4804, 16180), (6005, 12944), (6472, 12010), (8090, 9608)]