256478252

素因数分解:

$2^2\times {\mathrm{17}}^3\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:507

約数の個数: 48

約数和(自身を含む): 493436160

約数和(自身を除く): 236957908

約数列:

[1, 2, 4, 17, 31, 34, 62, 68, 124, 289, 421, 527, 578, 842, 1054, 1156, 1684, 2108, 4913, 7157, 8959, 9826, 13051, 14314, 17918, 19652, 26102, 28628, 35836, 52204, 121669, 152303, 221867, 243338, 304606, 443734, 486676, 609212, 887468, 2068373, 3771739, 4136746, 7543478, 8273492, 15086956, 64119563, 128239126, 256478252]

約数ペア:

[(1, 256478252), (2, 128239126), (4, 64119563), (17, 15086956), (31, 8273492), (34, 7543478), (62, 4136746), (68, 3771739), (124, 2068373), (289, 887468), (421, 609212), (527, 486676), (578, 443734), (842, 304606), (1054, 243338), (1156, 221867), (1684, 152303), (2108, 121669), (4913, 52204), (7157, 35836), (8959, 28628), (9826, 26102), (13051, 19652), (14314, 17918)]