3908240

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{997}}^1$

素因数の和:1024

約数の個数: 60

約数和(自身を含む): 10580796

約数和(自身を除く): 6672556

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 997, 1960, 1994, 3920, 3988, 4985, 6979, 7976, 9970, 13958, 15952, 19940, 27916, 34895, 39880, 48853, 55832, 69790, 79760, 97706, 111664, 139580, 195412, 244265, 279160, 390824, 488530, 558320, 781648, 977060, 1954120, 3908240]

約数ペア:

[(1, 3908240), (2, 1954120), (4, 977060), (5, 781648), (7, 558320), (8, 488530), (10, 390824), (14, 279160), (16, 244265), (20, 195412), (28, 139580), (35, 111664), (40, 97706), (49, 79760), (56, 69790), (70, 55832), (80, 48853), (98, 39880), (112, 34895), (140, 27916), (196, 19940), (245, 15952), (280, 13958), (392, 9970), (490, 7976), (560, 6979), (784, 4985), (980, 3988), (997, 3920), (1960, 1994)]