487913960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{393479}}^1$

素因数の和:393521

約数の個数: 32

約数和(自身を含む): 1133222400

約数和(自身を除く): 645308440

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 393479, 786958, 1573916, 1967395, 3147832, 3934790, 7869580, 12197849, 15739160, 24395698, 48791396, 60989245, 97582792, 121978490, 243956980, 487913960]

約数ペア:

[(1, 487913960), (2, 243956980), (4, 121978490), (5, 97582792), (8, 60989245), (10, 48791396), (20, 24395698), (31, 15739160), (40, 12197849), (62, 7869580), (124, 3934790), (155, 3147832), (248, 1967395), (310, 1573916), (620, 786958), (1240, 393479)]