31312960

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{1997}}^1$

素因数の和:2028

約数の個数: 84

約数和(自身を含む): 86781132

約数和(自身を除く): 55468172

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 320, 392, 448, 490, 560, 784, 980, 1120, 1568, 1960, 1997, 2240, 3136, 3920, 3994, 7840, 7988, 9985, 13979, 15680, 15976, 19970, 27958, 31952, 39940, 55916, 63904, 69895, 79880, 97853, 111832, 127808, 139790, 159760, 195706, 223664, 279580, 319520, 391412, 447328, 489265, 559160, 639040, 782824, 894656, 978530, 1118320, 1565648, 1957060, 2236640, 3131296, 3914120, 4473280, 6262592, 7828240, 15656480, 31312960]

約数ペア:

[(1, 31312960), (2, 15656480), (4, 7828240), (5, 6262592), (7, 4473280), (8, 3914120), (10, 3131296), (14, 2236640), (16, 1957060), (20, 1565648), (28, 1118320), (32, 978530), (35, 894656), (40, 782824), (49, 639040), (56, 559160), (64, 489265), (70, 447328), (80, 391412), (98, 319520), (112, 279580), (140, 223664), (160, 195706), (196, 159760), (224, 139790), (245, 127808), (280, 111832), (320, 97853), (392, 79880), (448, 69895), (490, 63904), (560, 55916), (784, 39940), (980, 31952), (1120, 27958), (1568, 19970), (1960, 15976), (1997, 15680), (2240, 13979), (3136, 9985), (3920, 7988), (3994, 7840)]