22808920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:292

約数の個数: 64

約数和(自身を含む): 53460000

約数和(自身を除く): 30651080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 89, 149, 172, 178, 215, 298, 344, 356, 430, 445, 596, 712, 745, 860, 890, 1192, 1490, 1720, 1780, 2980, 3560, 3827, 5960, 6407, 7654, 12814, 13261, 15308, 19135, 25628, 26522, 30616, 32035, 38270, 51256, 53044, 64070, 66305, 76540, 106088, 128140, 132610, 153080, 256280, 265220, 530440, 570223, 1140446, 2280892, 2851115, 4561784, 5702230, 11404460, 22808920]

約数ペア:

[(1, 22808920), (2, 11404460), (4, 5702230), (5, 4561784), (8, 2851115), (10, 2280892), (20, 1140446), (40, 570223), (43, 530440), (86, 265220), (89, 256280), (149, 153080), (172, 132610), (178, 128140), (215, 106088), (298, 76540), (344, 66305), (356, 64070), (430, 53044), (445, 51256), (596, 38270), (712, 32035), (745, 30616), (860, 26522), (890, 25628), (1192, 19135), (1490, 15308), (1720, 13261), (1780, 12814), (2980, 7654), (3560, 6407), (3827, 5960)]