20177409080

素因数分解:

$2^3\times 5^1\times {\mathrm{28843}}^1\times {\mathrm{17489}}^1$

素因数の和:46343

約数の個数: 32

約数和(自身を含む): 45403340400

約数和(自身を除く): 25225931320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 17489, 28843, 34978, 57686, 69956, 87445, 115372, 139912, 144215, 174890, 230744, 288430, 349780, 576860, 699560, 1153720, 504435227, 1008870454, 2017740908, 2522176135, 4035481816, 5044352270, 10088704540, 20177409080]

約数ペア:

[(1, 20177409080), (2, 10088704540), (4, 5044352270), (5, 4035481816), (8, 2522176135), (10, 2017740908), (20, 1008870454), (40, 504435227), (17489, 1153720), (28843, 699560), (34978, 576860), (57686, 349780), (69956, 288430), (87445, 230744), (115372, 174890), (139912, 144215)]