80521725

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{587}}^1$

素因数の和:690

約数の個数: 48

約数和(自身を含む): 139991040

約数和(自身を除く): 59469315

約数列:

[1, 3, 5, 15, 25, 31, 59, 75, 93, 155, 177, 295, 465, 587, 775, 885, 1475, 1761, 1829, 2325, 2935, 4425, 5487, 8805, 9145, 14675, 18197, 27435, 34633, 44025, 45725, 54591, 90985, 103899, 137175, 173165, 272955, 454925, 519495, 865825, 1073623, 1364775, 2597475, 3220869, 5368115, 16104345, 26840575, 80521725]

約数ペア:

[(1, 80521725), (3, 26840575), (5, 16104345), (15, 5368115), (25, 3220869), (31, 2597475), (59, 1364775), (75, 1073623), (93, 865825), (155, 519495), (177, 454925), (295, 272955), (465, 173165), (587, 137175), (775, 103899), (885, 90985), (1475, 54591), (1761, 45725), (1829, 44025), (2325, 34633), (2935, 27435), (4425, 18197), (5487, 14675), (8805, 9145)]