19954770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{3557}}^1$

素因数の和:3595

約数の個数: 64

約数和(自身を含む): 55334016

約数和(自身を除く): 35379246

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 17, 22, 30, 33, 34, 51, 55, 66, 85, 102, 110, 165, 170, 187, 255, 330, 374, 510, 561, 935, 1122, 1870, 2805, 3557, 5610, 7114, 10671, 17785, 21342, 35570, 39127, 53355, 60469, 78254, 106710, 117381, 120938, 181407, 195635, 234762, 302345, 362814, 391270, 586905, 604690, 665159, 907035, 1173810, 1330318, 1814070, 1995477, 3325795, 3990954, 6651590, 9977385, 19954770]

約数ペア:

[(1, 19954770), (2, 9977385), (3, 6651590), (5, 3990954), (6, 3325795), (10, 1995477), (11, 1814070), (15, 1330318), (17, 1173810), (22, 907035), (30, 665159), (33, 604690), (34, 586905), (51, 391270), (55, 362814), (66, 302345), (85, 234762), (102, 195635), (110, 181407), (165, 120938), (170, 117381), (187, 106710), (255, 78254), (330, 60469), (374, 53355), (510, 39127), (561, 35570), (935, 21342), (1122, 17785), (1870, 10671), (2805, 7114), (3557, 5610)]