20880451535

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1\times {\mathrm{20147}}^1$

素因数の和:20395

約数の個数: 32

約数和(自身を含む): 27025721280

約数和(自身を除く): 6145269745

約数列:

[1, 5, 17, 85, 89, 137, 445, 685, 1513, 2329, 7565, 11645, 12193, 20147, 60965, 100735, 207281, 342499, 1036405, 1712495, 1793083, 2760139, 8965415, 13800695, 30482411, 46922363, 152412055, 234611815, 245652371, 1228261855, 4176090307, 20880451535]

約数ペア:

[(1, 20880451535), (5, 4176090307), (17, 1228261855), (85, 245652371), (89, 234611815), (137, 152412055), (445, 46922363), (685, 30482411), (1513, 13800695), (2329, 8965415), (7565, 2760139), (11645, 1793083), (12193, 1712495), (20147, 1036405), (60965, 342499), (100735, 207281)]