90206080

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{8291}}^1$

素因数の和:8327

約数の個数: 64

約数和(自身を含む): 228361680

約数和(自身を除く): 138155600

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 272, 320, 340, 544, 640, 680, 1088, 1360, 2176, 2720, 5440, 8291, 10880, 16582, 33164, 41455, 66328, 82910, 132656, 140947, 165820, 265312, 281894, 331640, 530624, 563788, 663280, 704735, 1061248, 1127576, 1326560, 1409470, 2255152, 2653120, 2818940, 4510304, 5306240, 5637880, 9020608, 11275760, 18041216, 22551520, 45103040, 90206080]

約数ペア:

[(1, 90206080), (2, 45103040), (4, 22551520), (5, 18041216), (8, 11275760), (10, 9020608), (16, 5637880), (17, 5306240), (20, 4510304), (32, 2818940), (34, 2653120), (40, 2255152), (64, 1409470), (68, 1326560), (80, 1127576), (85, 1061248), (128, 704735), (136, 663280), (160, 563788), (170, 530624), (272, 331640), (320, 281894), (340, 265312), (544, 165820), (640, 140947), (680, 132656), (1088, 82910), (1360, 66328), (2176, 41455), (2720, 33164), (5440, 16582), (8291, 10880)]