30939860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{7129}}^1$

素因数の和:7176

約数の個数: 48

約数和(自身を含む): 76661760

約数和(自身を除く): 45721900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 7129, 14258, 28516, 35645, 49903, 71290, 99806, 142580, 199612, 220999, 249515, 441998, 499030, 883996, 998060, 1104995, 1546993, 2209990, 3093986, 4419980, 6187972, 7734965, 15469930, 30939860]

約数ペア:

[(1, 30939860), (2, 15469930), (4, 7734965), (5, 6187972), (7, 4419980), (10, 3093986), (14, 2209990), (20, 1546993), (28, 1104995), (31, 998060), (35, 883996), (62, 499030), (70, 441998), (124, 249515), (140, 220999), (155, 199612), (217, 142580), (310, 99806), (434, 71290), (620, 49903), (868, 35645), (1085, 28516), (2170, 14258), (4340, 7129)]