72231775

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{239}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 112849920

約数和(自身を除く): 40618145

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 157, 175, 239, 275, 385, 785, 1099, 1195, 1673, 1727, 1925, 2629, 3925, 5495, 5975, 8365, 8635, 12089, 13145, 18403, 27475, 37523, 41825, 43175, 60445, 65725, 92015, 187615, 262661, 302225, 412753, 460075, 938075, 1313305, 2063765, 2889271, 6566525, 10318825, 14446355, 72231775]

約数ペア:

[(1, 72231775), (5, 14446355), (7, 10318825), (11, 6566525), (25, 2889271), (35, 2063765), (55, 1313305), (77, 938075), (157, 460075), (175, 412753), (239, 302225), (275, 262661), (385, 187615), (785, 92015), (1099, 65725), (1195, 60445), (1673, 43175), (1727, 41825), (1925, 37523), (2629, 27475), (3925, 18403), (5495, 13145), (5975, 12089), (8365, 8635)]