39397960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{20101}}^1$

素因数の和:20126

約数の個数: 48

約数和(自身を含む): 103123260

約数和(自身を除く): 63725300

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 20101, 40202, 80404, 100505, 140707, 160808, 201010, 281414, 402020, 562828, 703535, 804040, 984949, 1125656, 1407070, 1969898, 2814140, 3939796, 4924745, 5628280, 7879592, 9849490, 19698980, 39397960]

約数ペア:

[(1, 39397960), (2, 19698980), (4, 9849490), (5, 7879592), (7, 5628280), (8, 4924745), (10, 3939796), (14, 2814140), (20, 1969898), (28, 1407070), (35, 1125656), (40, 984949), (49, 804040), (56, 703535), (70, 562828), (98, 402020), (140, 281414), (196, 201010), (245, 160808), (280, 140707), (392, 100505), (490, 80404), (980, 40202), (1960, 20101)]