18666620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{883}}^1$

素因数の和:1050

約数の個数: 48

約数和(自身を含む): 45147648

約数和(自身を除く): 26481028

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 151, 302, 604, 755, 883, 1057, 1510, 1766, 2114, 3020, 3532, 4228, 4415, 5285, 6181, 8830, 10570, 12362, 17660, 21140, 24724, 30905, 61810, 123620, 133333, 266666, 533332, 666665, 933331, 1333330, 1866662, 2666660, 3733324, 4666655, 9333310, 18666620]

約数ペア:

[(1, 18666620), (2, 9333310), (4, 4666655), (5, 3733324), (7, 2666660), (10, 1866662), (14, 1333330), (20, 933331), (28, 666665), (35, 533332), (70, 266666), (140, 133333), (151, 123620), (302, 61810), (604, 30905), (755, 24724), (883, 21140), (1057, 17660), (1510, 12362), (1766, 10570), (2114, 8830), (3020, 6181), (3532, 5285), (4228, 4415)]