91090720

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{81331}}^1$

素因数の和:81353

約数の個数: 48

約数和(自身を含む): 245947968

約数和(自身を除く): 154857248

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 81331, 162662, 325324, 406655, 569317, 650648, 813310, 1138634, 1301296, 1626620, 2277268, 2602592, 2846585, 3253240, 4554536, 5693170, 6506480, 9109072, 11386340, 13012960, 18218144, 22772680, 45545360, 91090720]

約数ペア:

[(1, 91090720), (2, 45545360), (4, 22772680), (5, 18218144), (7, 13012960), (8, 11386340), (10, 9109072), (14, 6506480), (16, 5693170), (20, 4554536), (28, 3253240), (32, 2846585), (35, 2602592), (40, 2277268), (56, 1626620), (70, 1301296), (80, 1138634), (112, 813310), (140, 650648), (160, 569317), (224, 406655), (280, 325324), (560, 162662), (1120, 81331)]