7856720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:192

約数の個数: 80

約数和(自身を含む): 19887120

約数和(自身を除く): 12030400

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 53, 68, 80, 85, 106, 109, 136, 170, 212, 218, 265, 272, 340, 424, 436, 530, 545, 680, 848, 872, 901, 1060, 1090, 1360, 1744, 1802, 1853, 2120, 2180, 3604, 3706, 4240, 4360, 4505, 5777, 7208, 7412, 8720, 9010, 9265, 11554, 14416, 14824, 18020, 18530, 23108, 28885, 29648, 36040, 37060, 46216, 57770, 72080, 74120, 92432, 98209, 115540, 148240, 196418, 231080, 392836, 462160, 491045, 785672, 982090, 1571344, 1964180, 3928360, 7856720]

約数ペア:

[(1, 7856720), (2, 3928360), (4, 1964180), (5, 1571344), (8, 982090), (10, 785672), (16, 491045), (17, 462160), (20, 392836), (34, 231080), (40, 196418), (53, 148240), (68, 115540), (80, 98209), (85, 92432), (106, 74120), (109, 72080), (136, 57770), (170, 46216), (212, 37060), (218, 36040), (265, 29648), (272, 28885), (340, 23108), (424, 18530), (436, 18020), (530, 14824), (545, 14416), (680, 11554), (848, 9265), (872, 9010), (901, 8720), (1060, 7412), (1090, 7208), (1360, 5777), (1744, 4505), (1802, 4360), (1853, 4240), (2120, 3706), (2180, 3604)]