71961395

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{241}}^1$

素因数の和:407

約数の個数: 32

約数和(自身を含む): 97225920

約数和(自身を除く): 25264525

約数列:

[1, 5, 11, 55, 61, 89, 241, 305, 445, 671, 979, 1205, 2651, 3355, 4895, 5429, 13255, 14701, 21449, 27145, 59719, 73505, 107245, 161711, 235939, 298595, 808555, 1179695, 1308389, 6541945, 14392279, 71961395]

約数ペア:

[(1, 71961395), (5, 14392279), (11, 6541945), (55, 1308389), (61, 1179695), (89, 808555), (241, 298595), (305, 235939), (445, 161711), (671, 107245), (979, 73505), (1205, 59719), (2651, 27145), (3355, 21449), (4895, 14701), (5429, 13255)]