2018552720

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{355379}}^1$

素因数の和:355463

約数の個数: 40

約数和(自身を含む): 4759248960

約数和(自身を除く): 2740696240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 355379, 710758, 1421516, 1776895, 2843032, 3553790, 5686064, 7107580, 14215160, 25231909, 28430320, 50463818, 100927636, 126159545, 201855272, 252319090, 403710544, 504638180, 1009276360, 2018552720]

約数ペア:

[(1, 2018552720), (2, 1009276360), (4, 504638180), (5, 403710544), (8, 252319090), (10, 201855272), (16, 126159545), (20, 100927636), (40, 50463818), (71, 28430320), (80, 25231909), (142, 14215160), (284, 7107580), (355, 5686064), (568, 3553790), (710, 2843032), (1136, 1776895), (1420, 1421516), (2840, 710758), (5680, 355379)]