28639860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2423}}^1$

素因数の和:2632

約数の個数: 48

約数和(自身を含む): 80631936

約数和(自身を除く): 51992076

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 197, 394, 591, 788, 985, 1182, 1970, 2364, 2423, 2955, 3940, 4846, 5910, 7269, 9692, 11820, 12115, 14538, 24230, 29076, 36345, 48460, 72690, 145380, 477331, 954662, 1431993, 1909324, 2386655, 2863986, 4773310, 5727972, 7159965, 9546620, 14319930, 28639860]

約数ペア:

[(1, 28639860), (2, 14319930), (3, 9546620), (4, 7159965), (5, 5727972), (6, 4773310), (10, 2863986), (12, 2386655), (15, 1909324), (20, 1431993), (30, 954662), (60, 477331), (197, 145380), (394, 72690), (591, 48460), (788, 36345), (985, 29076), (1182, 24230), (1970, 14538), (2364, 12115), (2423, 11820), (2955, 9692), (3940, 7269), (4846, 5910)]