217678450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{3631}}^1$

素因数の和:3763

約数の個数: 48

約数和(自身を含む): 445864320

約数和(自身を除く): 228185870

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 109, 110, 218, 275, 545, 550, 1090, 1199, 2398, 2725, 3631, 5450, 5995, 7262, 11990, 18155, 29975, 36310, 39941, 59950, 79882, 90775, 181550, 199705, 395779, 399410, 791558, 998525, 1978895, 1997050, 3957790, 4353569, 8707138, 9894475, 19788950, 21767845, 43535690, 108839225, 217678450]

約数ペア:

[(1, 217678450), (2, 108839225), (5, 43535690), (10, 21767845), (11, 19788950), (22, 9894475), (25, 8707138), (50, 4353569), (55, 3957790), (109, 1997050), (110, 1978895), (218, 998525), (275, 791558), (545, 399410), (550, 395779), (1090, 199705), (1199, 181550), (2398, 90775), (2725, 79882), (3631, 59950), (5450, 39941), (5995, 36310), (7262, 29975), (11990, 18155)]