18117693875

素因数分解:

$5^3\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{21799}}^1$

素因数の和:21984

約数の個数: 32

約数和(自身を含む): 23193456000

約数和(自身を除く): 5075762125

約数列:

[1, 5, 25, 61, 109, 125, 305, 545, 1525, 2725, 6649, 7625, 13625, 21799, 33245, 108995, 166225, 544975, 831125, 1329739, 2376091, 2724875, 6648695, 11880455, 33243475, 59402275, 144941551, 166217375, 297011375, 724707755, 3623538775, 18117693875]

約数ペア:

[(1, 18117693875), (5, 3623538775), (25, 724707755), (61, 297011375), (109, 166217375), (125, 144941551), (305, 59402275), (545, 33243475), (1525, 11880455), (2725, 6648695), (6649, 2724875), (7625, 2376091), (13625, 1329739), (21799, 831125), (33245, 544975), (108995, 166225)]