856551225

素因数分解:

$3^1\times 5^2\times {\mathrm{97}}^1\times {\mathrm{281}}^1\times {\mathrm{419}}^1$

素因数の和:810

約数の個数: 48

約数和(自身を含む): 1439282880

約数和(自身を除く): 582731655

約数列:

[1, 3, 5, 15, 25, 75, 97, 281, 291, 419, 485, 843, 1257, 1405, 1455, 2095, 2425, 4215, 6285, 7025, 7275, 10475, 21075, 27257, 31425, 40643, 81771, 117739, 121929, 136285, 203215, 353217, 408855, 588695, 609645, 681425, 1016075, 1766085, 2044275, 2943475, 3048225, 8830425, 11420683, 34262049, 57103415, 171310245, 285517075, 856551225]

約数ペア:

[(1, 856551225), (3, 285517075), (5, 171310245), (15, 57103415), (25, 34262049), (75, 11420683), (97, 8830425), (281, 3048225), (291, 2943475), (419, 2044275), (485, 1766085), (843, 1016075), (1257, 681425), (1405, 609645), (1455, 588695), (2095, 408855), (2425, 353217), (4215, 203215), (6285, 136285), (7025, 121929), (7275, 117739), (10475, 81771), (21075, 40643), (27257, 31425)]