1278754940

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{443}}^1\times {\mathrm{1429}}^1$

素因数の和:1982

約数の個数: 48

約数和(自身を含む): 2719997280

約数和(自身を除く): 1441242340

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 443, 505, 886, 1010, 1429, 1772, 2020, 2215, 2858, 4430, 5716, 7145, 8860, 14290, 28580, 44743, 89486, 144329, 178972, 223715, 288658, 447430, 577316, 633047, 721645, 894860, 1266094, 1443290, 2532188, 2886580, 3165235, 6330470, 12660940, 63937747, 127875494, 255750988, 319688735, 639377470, 1278754940]

約数ペア:

[(1, 1278754940), (2, 639377470), (4, 319688735), (5, 255750988), (10, 127875494), (20, 63937747), (101, 12660940), (202, 6330470), (404, 3165235), (443, 2886580), (505, 2532188), (886, 1443290), (1010, 1266094), (1429, 894860), (1772, 721645), (2020, 633047), (2215, 577316), (2858, 447430), (4430, 288658), (5716, 223715), (7145, 178972), (8860, 144329), (14290, 89486), (28580, 44743)]