207989740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{51229}}^1$

素因数の和:51274

約数の個数: 48

約数和(自身を含む): 516398400

約数和(自身を除く): 308408660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 51229, 102458, 204916, 256145, 358603, 512290, 717206, 1024580, 1434412, 1485641, 1793015, 2971282, 3586030, 5942564, 7172060, 7428205, 10399487, 14856410, 20798974, 29712820, 41597948, 51997435, 103994870, 207989740]

約数ペア:

[(1, 207989740), (2, 103994870), (4, 51997435), (5, 41597948), (7, 29712820), (10, 20798974), (14, 14856410), (20, 10399487), (28, 7428205), (29, 7172060), (35, 5942564), (58, 3586030), (70, 2971282), (116, 1793015), (140, 1485641), (145, 1434412), (203, 1024580), (290, 717206), (406, 512290), (580, 358603), (812, 256145), (1015, 204916), (2030, 102458), (4060, 51229)]