20436340

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1\times {\mathrm{151}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 44279424

約数和(自身を除く): 23843084

約数列:

[1, 2, 4, 5, 10, 20, 67, 101, 134, 151, 202, 268, 302, 335, 404, 505, 604, 670, 755, 1010, 1340, 1510, 2020, 3020, 6767, 10117, 13534, 15251, 20234, 27068, 30502, 33835, 40468, 50585, 61004, 67670, 76255, 101170, 135340, 152510, 202340, 305020, 1021817, 2043634, 4087268, 5109085, 10218170, 20436340]

約数ペア:

[(1, 20436340), (2, 10218170), (4, 5109085), (5, 4087268), (10, 2043634), (20, 1021817), (67, 305020), (101, 202340), (134, 152510), (151, 135340), (202, 101170), (268, 76255), (302, 67670), (335, 61004), (404, 50585), (505, 40468), (604, 33835), (670, 30502), (755, 27068), (1010, 20234), (1340, 15251), (1510, 13534), (2020, 10117), (3020, 6767)]