218479940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{50341}}^1$

素因数の和:50388

約数の個数: 48

約数和(自身を含む): 541277184

約数和(自身を除く): 322797244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 50341, 100682, 201364, 251705, 352387, 503410, 704774, 1006820, 1409548, 1560571, 1761935, 3121142, 3523870, 6242284, 7047740, 7802855, 10923997, 15605710, 21847994, 31211420, 43695988, 54619985, 109239970, 218479940]

約数ペア:

[(1, 218479940), (2, 109239970), (4, 54619985), (5, 43695988), (7, 31211420), (10, 21847994), (14, 15605710), (20, 10923997), (28, 7802855), (31, 7047740), (35, 6242284), (62, 3523870), (70, 3121142), (124, 1761935), (140, 1560571), (155, 1409548), (217, 1006820), (310, 704774), (434, 503410), (620, 352387), (868, 251705), (1085, 201364), (2170, 100682), (4340, 50341)]