28920550

素因数分解:

$2^1\times 5^2\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:265

約数の個数: 48

約数和(自身を含む): 55777680

約数和(自身を除く): 26857130

約数列:

[1, 2, 5, 10, 25, 50, 67, 89, 97, 134, 178, 194, 335, 445, 485, 670, 890, 970, 1675, 2225, 2425, 3350, 4450, 4850, 5963, 6499, 8633, 11926, 12998, 17266, 29815, 32495, 43165, 59630, 64990, 86330, 149075, 162475, 215825, 298150, 324950, 431650, 578411, 1156822, 2892055, 5784110, 14460275, 28920550]

約数ペア:

[(1, 28920550), (2, 14460275), (5, 5784110), (10, 2892055), (25, 1156822), (50, 578411), (67, 431650), (89, 324950), (97, 298150), (134, 215825), (178, 162475), (194, 149075), (335, 86330), (445, 64990), (485, 59630), (670, 43165), (890, 32495), (970, 29815), (1675, 17266), (2225, 12998), (2425, 11926), (3350, 8633), (4450, 6499), (4850, 5963)]