18792975

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 32855040

約数和(自身を除く): 14062065

約数列:

[1, 3, 5, 15, 25, 31, 59, 75, 93, 137, 155, 177, 295, 411, 465, 685, 775, 885, 1475, 1829, 2055, 2325, 3425, 4247, 4425, 5487, 8083, 9145, 10275, 12741, 21235, 24249, 27435, 40415, 45725, 63705, 106175, 121245, 137175, 202075, 250573, 318525, 606225, 751719, 1252865, 3758595, 6264325, 18792975]

約数ペア:

[(1, 18792975), (3, 6264325), (5, 3758595), (15, 1252865), (25, 751719), (31, 606225), (59, 318525), (75, 250573), (93, 202075), (137, 137175), (155, 121245), (177, 106175), (295, 63705), (411, 45725), (465, 40415), (685, 27435), (775, 24249), (885, 21235), (1475, 12741), (1829, 10275), (2055, 9145), (2325, 8083), (3425, 5487), (4247, 4425)]