7867020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{18731}}^1$

素因数の和:18750

約数の個数: 48

約数和(自身を含む): 25175808

約数和(自身を除く): 17308788

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, 18731, 37462, 56193, 74924, 93655, 112386, 131117, 187310, 224772, 262234, 280965, 374620, 393351, 524468, 561930, 655585, 786702, 1123860, 1311170, 1573404, 1966755, 2622340, 3933510, 7867020]

約数ペア:

[(1, 7867020), (2, 3933510), (3, 2622340), (4, 1966755), (5, 1573404), (6, 1311170), (7, 1123860), (10, 786702), (12, 655585), (14, 561930), (15, 524468), (20, 393351), (21, 374620), (28, 280965), (30, 262234), (35, 224772), (42, 187310), (60, 131117), (70, 112386), (84, 93655), (105, 74924), (140, 56193), (210, 37462), (420, 18731)]