215516500

素因数分解:

$2^2\times 5^3\times {\mathrm{41}}^1\times {\mathrm{10513}}^1$

素因数の和:10573

約数の個数: 48

約数和(自身を含む): 482214096

約数和(自身を除く): 266697596

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 125, 164, 205, 250, 410, 500, 820, 1025, 2050, 4100, 5125, 10250, 10513, 20500, 21026, 42052, 52565, 105130, 210260, 262825, 431033, 525650, 862066, 1051300, 1314125, 1724132, 2155165, 2628250, 4310330, 5256500, 8620660, 10775825, 21551650, 43103300, 53879125, 107758250, 215516500]

約数ペア:

[(1, 215516500), (2, 107758250), (4, 53879125), (5, 43103300), (10, 21551650), (20, 10775825), (25, 8620660), (41, 5256500), (50, 4310330), (82, 2628250), (100, 2155165), (125, 1724132), (164, 1314125), (205, 1051300), (250, 862066), (410, 525650), (500, 431033), (820, 262825), (1025, 210260), (2050, 105130), (4100, 52565), (5125, 42052), (10250, 21026), (10513, 20500)]