28212040

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{4327}}^1$

素因数の和:4501

約数の個数: 32

約数和(自身を含む): 63881280

約数和(自身を除く): 35669240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 4327, 6520, 8654, 17308, 21635, 34616, 43270, 86540, 173080, 705301, 1410602, 2821204, 3526505, 5642408, 7053010, 14106020, 28212040]

約数ペア:

[(1, 28212040), (2, 14106020), (4, 7053010), (5, 5642408), (8, 3526505), (10, 2821204), (20, 1410602), (40, 705301), (163, 173080), (326, 86540), (652, 43270), (815, 34616), (1304, 21635), (1630, 17308), (3260, 8654), (4327, 6520)]