81760740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{251}}^1$

素因数の和:413

約数の個数: 96

約数和(自身を含む): 236234880

約数和(自身を除く): 154474140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 89, 122, 178, 183, 244, 251, 267, 305, 356, 366, 445, 502, 534, 610, 732, 753, 890, 915, 1004, 1068, 1220, 1255, 1335, 1506, 1780, 1830, 2510, 2670, 3012, 3660, 3765, 5020, 5340, 5429, 7530, 10858, 15060, 15311, 16287, 21716, 22339, 27145, 30622, 32574, 44678, 45933, 54290, 61244, 65148, 67017, 76555, 81435, 89356, 91866, 108580, 111695, 134034, 153110, 162870, 183732, 223390, 229665, 268068, 306220, 325740, 335085, 446780, 459330, 670170, 918660, 1340340, 1362679, 2725358, 4088037, 5450716, 6813395, 8176074, 13626790, 16352148, 20440185, 27253580, 40880370, 81760740]

約数ペア:

[(1, 81760740), (2, 40880370), (3, 27253580), (4, 20440185), (5, 16352148), (6, 13626790), (10, 8176074), (12, 6813395), (15, 5450716), (20, 4088037), (30, 2725358), (60, 1362679), (61, 1340340), (89, 918660), (122, 670170), (178, 459330), (183, 446780), (244, 335085), (251, 325740), (267, 306220), (305, 268068), (356, 229665), (366, 223390), (445, 183732), (502, 162870), (534, 153110), (610, 134034), (732, 111695), (753, 108580), (890, 91866), (915, 89356), (1004, 81435), (1068, 76555), (1220, 67017), (1255, 65148), (1335, 61244), (1506, 54290), (1780, 45933), (1830, 44678), (2510, 32574), (2670, 30622), (3012, 27145), (3660, 22339), (3765, 21716), (5020, 16287), (5340, 15311), (5429, 15060), (7530, 10858)]