98438660

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1\times {\mathrm{383}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 211341312

約数和(自身を除く): 112902652

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 181, 284, 355, 362, 383, 710, 724, 766, 905, 1420, 1532, 1810, 1915, 3620, 3830, 7660, 12851, 25702, 27193, 51404, 54386, 64255, 69323, 108772, 128510, 135965, 138646, 257020, 271930, 277292, 346615, 543860, 693230, 1386460, 4921933, 9843866, 19687732, 24609665, 49219330, 98438660]

約数ペア:

[(1, 98438660), (2, 49219330), (4, 24609665), (5, 19687732), (10, 9843866), (20, 4921933), (71, 1386460), (142, 693230), (181, 543860), (284, 346615), (355, 277292), (362, 271930), (383, 257020), (710, 138646), (724, 135965), (766, 128510), (905, 108772), (1420, 69323), (1532, 64255), (1810, 54386), (1915, 51404), (3620, 27193), (3830, 25702), (7660, 12851)]