161494490

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{20731}}^1$

素因数の和:20798

約数の個数: 32

約数和(自身を含む): 313467840

約数和(自身を除く): 151973350

約数列:

[1, 2, 5, 10, 19, 38, 41, 82, 95, 190, 205, 410, 779, 1558, 3895, 7790, 20731, 41462, 103655, 207310, 393889, 787778, 849971, 1699942, 1969445, 3938890, 4249855, 8499710, 16149449, 32298898, 80747245, 161494490]

約数ペア:

[(1, 161494490), (2, 80747245), (5, 32298898), (10, 16149449), (19, 8499710), (38, 4249855), (41, 3938890), (82, 1969445), (95, 1699942), (190, 849971), (205, 787778), (410, 393889), (779, 207310), (1558, 103655), (3895, 41462), (7790, 20731)]