257765940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{18127}}^1$

素因数の和:18221

約数の個数: 72

約数和(自身を含む): 791831040

約数和(自身を除く): 534065100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 79, 90, 158, 180, 237, 316, 395, 474, 711, 790, 948, 1185, 1422, 1580, 2370, 2844, 3555, 4740, 7110, 14220, 18127, 36254, 54381, 72508, 90635, 108762, 163143, 181270, 217524, 271905, 326286, 362540, 543810, 652572, 815715, 1087620, 1432033, 1631430, 2864066, 3262860, 4296099, 5728132, 7160165, 8592198, 12888297, 14320330, 17184396, 21480495, 25776594, 28640660, 42960990, 51553188, 64441485, 85921980, 128882970, 257765940]

約数ペア:

[(1, 257765940), (2, 128882970), (3, 85921980), (4, 64441485), (5, 51553188), (6, 42960990), (9, 28640660), (10, 25776594), (12, 21480495), (15, 17184396), (18, 14320330), (20, 12888297), (30, 8592198), (36, 7160165), (45, 5728132), (60, 4296099), (79, 3262860), (90, 2864066), (158, 1631430), (180, 1432033), (237, 1087620), (316, 815715), (395, 652572), (474, 543810), (711, 362540), (790, 326286), (948, 271905), (1185, 217524), (1422, 181270), (1580, 163143), (2370, 108762), (2844, 90635), (3555, 72508), (4740, 54381), (7110, 36254), (14220, 18127)]