12781750

素因数分解:

$2^1\times 5^3\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:130

約数の個数: 64

約数和(自身を含む): 25945920

約数和(自身を除く): 13164170

約数列:

[1, 2, 5, 10, 25, 29, 41, 43, 50, 58, 82, 86, 125, 145, 205, 215, 250, 290, 410, 430, 725, 1025, 1075, 1189, 1247, 1450, 1763, 2050, 2150, 2378, 2494, 3526, 3625, 5125, 5375, 5945, 6235, 7250, 8815, 10250, 10750, 11890, 12470, 17630, 29725, 31175, 44075, 51127, 59450, 62350, 88150, 102254, 148625, 155875, 220375, 255635, 297250, 311750, 440750, 511270, 1278175, 2556350, 6390875, 12781750]

約数ペア:

[(1, 12781750), (2, 6390875), (5, 2556350), (10, 1278175), (25, 511270), (29, 440750), (41, 311750), (43, 297250), (50, 255635), (58, 220375), (82, 155875), (86, 148625), (125, 102254), (145, 88150), (205, 62350), (215, 59450), (250, 51127), (290, 44075), (410, 31175), (430, 29725), (725, 17630), (1025, 12470), (1075, 11890), (1189, 10750), (1247, 10250), (1450, 8815), (1763, 7250), (2050, 6235), (2150, 5945), (2378, 5375), (2494, 5125), (3526, 3625)]