256906940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{10301}}^1$

素因数の和:10382

約数の個数: 48

約数和(自身を含む): 571142880

約数和(自身を除く): 314235940

約数列:

[1, 2, 4, 5, 10, 20, 29, 43, 58, 86, 116, 145, 172, 215, 290, 430, 580, 860, 1247, 2494, 4988, 6235, 10301, 12470, 20602, 24940, 41204, 51505, 103010, 206020, 298729, 442943, 597458, 885886, 1194916, 1493645, 1771772, 2214715, 2987290, 4429430, 5974580, 8858860, 12845347, 25690694, 51381388, 64226735, 128453470, 256906940]

約数ペア:

[(1, 256906940), (2, 128453470), (4, 64226735), (5, 51381388), (10, 25690694), (20, 12845347), (29, 8858860), (43, 5974580), (58, 4429430), (86, 2987290), (116, 2214715), (145, 1771772), (172, 1493645), (215, 1194916), (290, 885886), (430, 597458), (580, 442943), (860, 298729), (1247, 206020), (2494, 103010), (4988, 51505), (6235, 41204), (10301, 24940), (12470, 20602)]