18040260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{42953}}^1$

素因数の和:42972

約数の個数: 48

約数和(自身を含む): 57730176

約数和(自身を除く): 39689916

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 42953, 85906, 128859, 171812, 214765, 257718, 300671, 429530, 515436, 601342, 644295, 859060, 902013, 1202684, 1288590, 1503355, 1804026, 2577180, 3006710, 3608052, 4510065, 6013420, 9020130, 18040260]

約数ペア:

[(1, 18040260), (2, 9020130), (3, 6013420), (4, 4510065), (5, 3608052), (6, 3006710), (7, 2577180), (10, 1804026), (12, 1503355), (14, 1288590), (15, 1202684), (20, 902013), (21, 859060), (28, 644295), (30, 601342), (35, 515436), (42, 429530), (60, 300671), (70, 257718), (84, 214765), (105, 171812), (140, 128859), (210, 85906), (420, 42953)]