4380520

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1129}}^1$

素因数の和:1237

約数の個数: 32

約数和(自身を含む): 9966600

約数和(自身を除く): 5586080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1129, 1940, 2258, 3880, 4516, 5645, 9032, 11290, 22580, 45160, 109513, 219026, 438052, 547565, 876104, 1095130, 2190260, 4380520]

約数ペア:

[(1, 4380520), (2, 2190260), (4, 1095130), (5, 876104), (8, 547565), (10, 438052), (20, 219026), (40, 109513), (97, 45160), (194, 22580), (388, 11290), (485, 9032), (776, 5645), (970, 4516), (1129, 3880), (1940, 2258)]