20189100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{173}}^1\times {\mathrm{389}}^1$

素因数の和:579

約数の個数: 72

約数和(自身を含む): 58902480

約数和(自身を除く): 38713380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 173, 300, 346, 389, 519, 692, 778, 865, 1038, 1167, 1556, 1730, 1945, 2076, 2334, 2595, 3460, 3890, 4325, 4668, 5190, 5835, 7780, 8650, 9725, 10380, 11670, 12975, 17300, 19450, 23340, 25950, 29175, 38900, 51900, 58350, 67297, 116700, 134594, 201891, 269188, 336485, 403782, 672970, 807564, 1009455, 1345940, 1682425, 2018910, 3364850, 4037820, 5047275, 6729700, 10094550, 20189100]

約数ペア:

[(1, 20189100), (2, 10094550), (3, 6729700), (4, 5047275), (5, 4037820), (6, 3364850), (10, 2018910), (12, 1682425), (15, 1345940), (20, 1009455), (25, 807564), (30, 672970), (50, 403782), (60, 336485), (75, 269188), (100, 201891), (150, 134594), (173, 116700), (300, 67297), (346, 58350), (389, 51900), (519, 38900), (692, 29175), (778, 25950), (865, 23340), (1038, 19450), (1167, 17300), (1556, 12975), (1730, 11670), (1945, 10380), (2076, 9725), (2334, 8650), (2595, 7780), (3460, 5835), (3890, 5190), (4325, 4668)]