31297280

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{499}}^1$

素因数の和:534

約数の個数: 108

約数和(自身を含む): 87381000

約数和(自身を除く): 56083720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 392, 448, 490, 499, 560, 640, 784, 896, 980, 998, 1120, 1280, 1568, 1792, 1960, 1996, 2240, 2495, 3136, 3493, 3920, 3992, 4480, 4990, 6272, 6986, 7840, 7984, 8960, 9980, 12544, 13972, 15680, 15968, 17465, 19960, 24451, 27944, 31360, 31936, 34930, 39920, 48902, 55888, 62720, 63872, 69860, 79840, 97804, 111776, 122255, 127744, 139720, 159680, 195608, 223552, 244510, 279440, 319360, 391216, 447104, 489020, 558880, 638720, 782432, 894208, 978040, 1117760, 1564864, 1956080, 2235520, 3129728, 3912160, 4471040, 6259456, 7824320, 15648640, 31297280]

約数ペア:

[(1, 31297280), (2, 15648640), (4, 7824320), (5, 6259456), (7, 4471040), (8, 3912160), (10, 3129728), (14, 2235520), (16, 1956080), (20, 1564864), (28, 1117760), (32, 978040), (35, 894208), (40, 782432), (49, 638720), (56, 558880), (64, 489020), (70, 447104), (80, 391216), (98, 319360), (112, 279440), (128, 244510), (140, 223552), (160, 195608), (196, 159680), (224, 139720), (245, 127744), (256, 122255), (280, 111776), (320, 97804), (392, 79840), (448, 69860), (490, 63872), (499, 62720), (560, 55888), (640, 48902), (784, 39920), (896, 34930), (980, 31936), (998, 31360), (1120, 27944), (1280, 24451), (1568, 19960), (1792, 17465), (1960, 15968), (1996, 15680), (2240, 13972), (2495, 12544), (3136, 9980), (3493, 8960), (3920, 7984), (3992, 7840), (4480, 6986), (4990, 6272)]