2013180860

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{19421}}^1$

素因数の和:19574

約数の個数: 48

約数和(自身を含む): 4346177472

約数和(自身を除く): 2332996612

約数列:

[1, 2, 4, 5, 10, 20, 71, 73, 142, 146, 284, 292, 355, 365, 710, 730, 1420, 1460, 5183, 10366, 19421, 20732, 25915, 38842, 51830, 77684, 97105, 103660, 194210, 388420, 1378891, 1417733, 2757782, 2835466, 5515564, 5670932, 6894455, 7088665, 13788910, 14177330, 27577820, 28354660, 100659043, 201318086, 402636172, 503295215, 1006590430, 2013180860]

約数ペア:

[(1, 2013180860), (2, 1006590430), (4, 503295215), (5, 402636172), (10, 201318086), (20, 100659043), (71, 28354660), (73, 27577820), (142, 14177330), (146, 13788910), (284, 7088665), (292, 6894455), (355, 5670932), (365, 5515564), (710, 2835466), (730, 2757782), (1420, 1417733), (1460, 1378891), (5183, 388420), (10366, 194210), (19421, 103660), (20732, 97105), (25915, 77684), (38842, 51830)]