18222680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{431}}^1$

素因数の和:600

約数の個数: 64

約数和(自身を含む): 47278080

約数和(自身を除く): 29055400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 151, 280, 302, 431, 604, 755, 862, 1057, 1208, 1510, 1724, 2114, 2155, 3017, 3020, 3448, 4228, 4310, 5285, 6034, 6040, 8456, 8620, 10570, 12068, 15085, 17240, 21140, 24136, 30170, 42280, 60340, 65081, 120680, 130162, 260324, 325405, 455567, 520648, 650810, 911134, 1301620, 1822268, 2277835, 2603240, 3644536, 4555670, 9111340, 18222680]

約数ペア:

[(1, 18222680), (2, 9111340), (4, 4555670), (5, 3644536), (7, 2603240), (8, 2277835), (10, 1822268), (14, 1301620), (20, 911134), (28, 650810), (35, 520648), (40, 455567), (56, 325405), (70, 260324), (140, 130162), (151, 120680), (280, 65081), (302, 60340), (431, 42280), (604, 30170), (755, 24136), (862, 21140), (1057, 17240), (1208, 15085), (1510, 12068), (1724, 10570), (2114, 8620), (2155, 8456), (3017, 6040), (3020, 6034), (3448, 5285), (4228, 4310)]