65472040

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{20719}}^1$

素因数の和:20809

約数の個数: 32

約数和(自身を含む): 149184000

約数和(自身を除く): 83711960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 20719, 41438, 82876, 103595, 165752, 207190, 414380, 828760, 1636801, 3273602, 6547204, 8184005, 13094408, 16368010, 32736020, 65472040]

約数ペア:

[(1, 65472040), (2, 32736020), (4, 16368010), (5, 13094408), (8, 8184005), (10, 6547204), (20, 3273602), (40, 1636801), (79, 828760), (158, 414380), (316, 207190), (395, 165752), (632, 103595), (790, 82876), (1580, 41438), (3160, 20719)]