15656480

素因数分解:

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

素因数の和:2026

約数の個数: 72

約数和(自身を含む): 43048908

約数和(自身を除く): 27392428

約数列:

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

約数ペア:

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