641823758

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1\times {\mathrm{401}}^1$

素因数の和:724

約数の個数: 32

約数和(自身を含む): 1002909600

約数和(自身を除く): 361085842

約数列:

[1, 2, 41, 82, 131, 149, 262, 298, 401, 802, 5371, 6109, 10742, 12218, 16441, 19519, 32882, 39038, 52531, 59749, 105062, 119498, 800279, 1600558, 2153771, 2449709, 4307542, 4899418, 7827119, 15654238, 320911879, 641823758]

約数ペア:

[(1, 641823758), (2, 320911879), (41, 15654238), (82, 7827119), (131, 4899418), (149, 4307542), (262, 2449709), (298, 2153771), (401, 1600558), (802, 800279), (5371, 119498), (6109, 105062), (10742, 59749), (12218, 52531), (16441, 39038), (19519, 32882)]