20808522250

素因数分解:

$2^1\times 5^3\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{39317}}^1$

素因数の和:39436

約数の個数: 64

約数和(自身を含む): 40849829280

約数和(自身を除く): 20041307030

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 73, 125, 145, 146, 250, 290, 365, 725, 730, 1450, 1825, 2117, 3625, 3650, 4234, 7250, 9125, 10585, 18250, 21170, 39317, 52925, 78634, 105850, 196585, 264625, 393170, 529250, 982925, 1140193, 1965850, 2280386, 2870141, 4914625, 5700965, 5740282, 9829250, 11401930, 14350705, 28504825, 28701410, 57009650, 71753525, 83234089, 142524125, 143507050, 166468178, 285048250, 358767625, 416170445, 717535250, 832340890, 2080852225, 4161704450, 10404261125, 20808522250]

約数ペア:

[(1, 20808522250), (2, 10404261125), (5, 4161704450), (10, 2080852225), (25, 832340890), (29, 717535250), (50, 416170445), (58, 358767625), (73, 285048250), (125, 166468178), (145, 143507050), (146, 142524125), (250, 83234089), (290, 71753525), (365, 57009650), (725, 28701410), (730, 28504825), (1450, 14350705), (1825, 11401930), (2117, 9829250), (3625, 5740282), (3650, 5700965), (4234, 4914625), (7250, 2870141), (9125, 2280386), (10585, 1965850), (18250, 1140193), (21170, 982925), (39317, 529250), (52925, 393170), (78634, 264625), (105850, 196585)]