20651470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1$

素因数の和:265

約数の個数: 64

約数和(自身を含む): 45121536

約数和(自身を除く): 24470066

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 101, 115, 127, 161, 202, 230, 254, 322, 505, 635, 707, 805, 889, 1010, 1270, 1414, 1610, 1778, 2323, 2921, 3535, 4445, 4646, 5842, 7070, 8890, 11615, 12827, 14605, 16261, 20447, 23230, 25654, 29210, 32522, 40894, 64135, 81305, 89789, 102235, 128270, 162610, 179578, 204470, 295021, 448945, 590042, 897890, 1475105, 2065147, 2950210, 4130294, 10325735, 20651470]

約数ペア:

[(1, 20651470), (2, 10325735), (5, 4130294), (7, 2950210), (10, 2065147), (14, 1475105), (23, 897890), (35, 590042), (46, 448945), (70, 295021), (101, 204470), (115, 179578), (127, 162610), (161, 128270), (202, 102235), (230, 89789), (254, 81305), (322, 64135), (505, 40894), (635, 32522), (707, 29210), (805, 25654), (889, 23230), (1010, 20447), (1270, 16261), (1414, 14605), (1610, 12827), (1778, 11615), (2323, 8890), (2921, 7070), (3535, 5842), (4445, 4646)]