18724480

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1721}}^1$

素因数の和:1757

約数の個数: 64

約数和(自身を含む): 47423880

約数和(自身を除く): 28699400

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, 1721, 2176, 2720, 3442, 5440, 6884, 8605, 10880, 13768, 17210, 27536, 29257, 34420, 55072, 58514, 68840, 110144, 117028, 137680, 146285, 220288, 234056, 275360, 292570, 468112, 550720, 585140, 936224, 1101440, 1170280, 1872448, 2340560, 3744896, 4681120, 9362240, 18724480]

約数ペア:

[(1, 18724480), (2, 9362240), (4, 4681120), (5, 3744896), (8, 2340560), (10, 1872448), (16, 1170280), (17, 1101440), (20, 936224), (32, 585140), (34, 550720), (40, 468112), (64, 292570), (68, 275360), (80, 234056), (85, 220288), (128, 146285), (136, 137680), (160, 117028), (170, 110144), (272, 68840), (320, 58514), (340, 55072), (544, 34420), (640, 29257), (680, 27536), (1088, 17210), (1360, 13768), (1721, 10880), (2176, 8605), (2720, 6884), (3442, 5440)]