28261750

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:310

約数の個数: 64

約数和(自身を含む): 59304960

約数和(自身を除く): 31043210

約数列:

[1, 2, 5, 10, 11, 22, 25, 43, 50, 55, 86, 110, 125, 215, 239, 250, 275, 430, 473, 478, 550, 946, 1075, 1195, 1375, 2150, 2365, 2390, 2629, 2750, 4730, 5258, 5375, 5975, 10277, 10750, 11825, 11950, 13145, 20554, 23650, 26290, 29875, 51385, 59125, 59750, 65725, 102770, 113047, 118250, 131450, 226094, 256925, 328625, 513850, 565235, 657250, 1130470, 1284625, 2569250, 2826175, 5652350, 14130875, 28261750]

約数ペア:

[(1, 28261750), (2, 14130875), (5, 5652350), (10, 2826175), (11, 2569250), (22, 1284625), (25, 1130470), (43, 657250), (50, 565235), (55, 513850), (86, 328625), (110, 256925), (125, 226094), (215, 131450), (239, 118250), (250, 113047), (275, 102770), (430, 65725), (473, 59750), (478, 59125), (550, 51385), (946, 29875), (1075, 26290), (1195, 23650), (1375, 20554), (2150, 13145), (2365, 11950), (2390, 11825), (2629, 10750), (2750, 10277), (4730, 5975), (5258, 5375)]