256435308

素因数分解:

$2^2\times 3^4\times {\mathrm{37}}^1\times {\mathrm{21391}}^1$

素因数の和:21444

約数の個数: 60

約数和(自身を含む): 688522912

約数和(自身を除く): 432087604

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 37, 54, 74, 81, 108, 111, 148, 162, 222, 324, 333, 444, 666, 999, 1332, 1998, 2997, 3996, 5994, 11988, 21391, 42782, 64173, 85564, 128346, 192519, 256692, 385038, 577557, 770076, 791467, 1155114, 1582934, 1732671, 2310228, 2374401, 3165868, 3465342, 4748802, 6930684, 7123203, 9497604, 14246406, 21369609, 28492812, 42739218, 64108827, 85478436, 128217654, 256435308]

約数ペア:

[(1, 256435308), (2, 128217654), (3, 85478436), (4, 64108827), (6, 42739218), (9, 28492812), (12, 21369609), (18, 14246406), (27, 9497604), (36, 7123203), (37, 6930684), (54, 4748802), (74, 3465342), (81, 3165868), (108, 2374401), (111, 2310228), (148, 1732671), (162, 1582934), (222, 1155114), (324, 791467), (333, 770076), (444, 577557), (666, 385038), (999, 256692), (1332, 192519), (1998, 128346), (2997, 85564), (3996, 64173), (5994, 42782), (11988, 21391)]