71963619

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:276

約数の個数: 64

約数和(自身を含む): 125712384

約数和(自身を除く): 53748765

約数列:

[1, 3, 7, 13, 21, 23, 39, 69, 73, 91, 157, 161, 219, 273, 299, 471, 483, 511, 897, 949, 1099, 1533, 1679, 2041, 2093, 2847, 3297, 3611, 5037, 6123, 6279, 6643, 10833, 11461, 11753, 14287, 19929, 21827, 25277, 34383, 35259, 42861, 46943, 65481, 75831, 80227, 140829, 148993, 152789, 240681, 263603, 328601, 446979, 458367, 790809, 985803, 1042951, 1845221, 3128853, 3426839, 5535663, 10280517, 23987873, 71963619]

約数ペア:

[(1, 71963619), (3, 23987873), (7, 10280517), (13, 5535663), (21, 3426839), (23, 3128853), (39, 1845221), (69, 1042951), (73, 985803), (91, 790809), (157, 458367), (161, 446979), (219, 328601), (273, 263603), (299, 240681), (471, 152789), (483, 148993), (511, 140829), (897, 80227), (949, 75831), (1099, 65481), (1533, 46943), (1679, 42861), (2041, 35259), (2093, 34383), (2847, 25277), (3297, 21827), (3611, 19929), (5037, 14287), (6123, 11753), (6279, 11461), (6643, 10833)]