18186980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{3511}}^1$

素因数の和:3564

約数の個数: 48

約数和(自身を含む): 44841216

約数和(自身を除く): 26654236

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 518, 740, 1036, 1295, 2590, 3511, 5180, 7022, 14044, 17555, 24577, 35110, 49154, 70220, 98308, 122885, 129907, 245770, 259814, 491540, 519628, 649535, 909349, 1299070, 1818698, 2598140, 3637396, 4546745, 9093490, 18186980]

約数ペア:

[(1, 18186980), (2, 9093490), (4, 4546745), (5, 3637396), (7, 2598140), (10, 1818698), (14, 1299070), (20, 909349), (28, 649535), (35, 519628), (37, 491540), (70, 259814), (74, 245770), (140, 129907), (148, 122885), (185, 98308), (259, 70220), (370, 49154), (518, 35110), (740, 24577), (1036, 17555), (1295, 14044), (2590, 7022), (3511, 5180)]