91261480

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{547}}^1$

素因数の和:698

約数の個数: 64

約数和(自身を含む): 212667840

約数和(自身を除く): 121406360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 97, 172, 194, 215, 344, 388, 430, 485, 547, 776, 860, 970, 1094, 1720, 1940, 2188, 2735, 3880, 4171, 4376, 5470, 8342, 10940, 16684, 20855, 21880, 23521, 33368, 41710, 47042, 53059, 83420, 94084, 106118, 117605, 166840, 188168, 212236, 235210, 265295, 424472, 470420, 530590, 940840, 1061180, 2122360, 2281537, 4563074, 9126148, 11407685, 18252296, 22815370, 45630740, 91261480]

約数ペア:

[(1, 91261480), (2, 45630740), (4, 22815370), (5, 18252296), (8, 11407685), (10, 9126148), (20, 4563074), (40, 2281537), (43, 2122360), (86, 1061180), (97, 940840), (172, 530590), (194, 470420), (215, 424472), (344, 265295), (388, 235210), (430, 212236), (485, 188168), (547, 166840), (776, 117605), (860, 106118), (970, 94084), (1094, 83420), (1720, 53059), (1940, 47042), (2188, 41710), (2735, 33368), (3880, 23521), (4171, 21880), (4376, 20855), (5470, 16684), (8342, 10940)]