16666440

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19841}}^1$

素因数の和:19862

約数の個数: 64

約数和(自身を含む): 57144960

約数和(自身を除く): 40478520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 19841, 39682, 59523, 79364, 99205, 119046, 138887, 158728, 198410, 238092, 277774, 297615, 396820, 416661, 476184, 555548, 595230, 694435, 793640, 833322, 1111096, 1190460, 1388870, 1666644, 2083305, 2380920, 2777740, 3333288, 4166610, 5555480, 8333220, 16666440]

約数ペア:

[(1, 16666440), (2, 8333220), (3, 5555480), (4, 4166610), (5, 3333288), (6, 2777740), (7, 2380920), (8, 2083305), (10, 1666644), (12, 1388870), (14, 1190460), (15, 1111096), (20, 833322), (21, 793640), (24, 694435), (28, 595230), (30, 555548), (35, 476184), (40, 416661), (42, 396820), (56, 297615), (60, 277774), (70, 238092), (84, 198410), (105, 158728), (120, 138887), (140, 119046), (168, 99205), (210, 79364), (280, 59523), (420, 39682), (840, 19841)]