21871600

素因数分解:

$2^4\times 5^2\times {\mathrm{54679}}^1$

素因数の和:54697

約数の個数: 30

約数和(自身を含む): 52547480

約数和(自身を除く): 30675880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 54679, 109358, 218716, 273395, 437432, 546790, 874864, 1093580, 1366975, 2187160, 2733950, 4374320, 5467900, 10935800, 21871600]

約数ペア:

[(1, 21871600), (2, 10935800), (4, 5467900), (5, 4374320), (8, 2733950), (10, 2187160), (16, 1366975), (20, 1093580), (25, 874864), (40, 546790), (50, 437432), (80, 273395), (100, 218716), (200, 109358), (400, 54679)]