27981065

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:138

約数の個数: 64

約数和(自身を含む): 44126208

約数和(自身を除く): 16145143

約数列:

[1, 5, 7, 17, 31, 35, 37, 41, 85, 119, 155, 185, 205, 217, 259, 287, 527, 595, 629, 697, 1085, 1147, 1271, 1295, 1435, 1517, 2635, 3145, 3485, 3689, 4403, 4879, 5735, 6355, 7585, 8029, 8897, 10619, 18445, 19499, 21607, 22015, 24395, 25789, 40145, 44485, 47027, 53095, 97495, 108035, 128945, 136493, 151249, 180523, 235135, 329189, 682465, 756245, 799459, 902615, 1645945, 3997295, 5596213, 27981065]

約数ペア:

[(1, 27981065), (5, 5596213), (7, 3997295), (17, 1645945), (31, 902615), (35, 799459), (37, 756245), (41, 682465), (85, 329189), (119, 235135), (155, 180523), (185, 151249), (205, 136493), (217, 128945), (259, 108035), (287, 97495), (527, 53095), (595, 47027), (629, 44485), (697, 40145), (1085, 25789), (1147, 24395), (1271, 22015), (1295, 21607), (1435, 19499), (1517, 18445), (2635, 10619), (3145, 8897), (3485, 8029), (3689, 7585), (4403, 6355), (4879, 5735)]