19289220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{18911}}^1$

素因数の和:18940

約数の個数: 48

約数和(自身を含む): 57189888

約数和(自身を除く): 37900668

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 18911, 37822, 56733, 75644, 94555, 113466, 189110, 226932, 283665, 321487, 378220, 567330, 642974, 964461, 1134660, 1285948, 1607435, 1928922, 3214870, 3857844, 4822305, 6429740, 9644610, 19289220]

約数ペア:

[(1, 19289220), (2, 9644610), (3, 6429740), (4, 4822305), (5, 3857844), (6, 3214870), (10, 1928922), (12, 1607435), (15, 1285948), (17, 1134660), (20, 964461), (30, 642974), (34, 567330), (51, 378220), (60, 321487), (68, 283665), (85, 226932), (102, 189110), (170, 113466), (204, 94555), (255, 75644), (340, 56733), (510, 37822), (1020, 18911)]