644598

素因数分解:

$2^1\times 3^4\times {\mathrm{23}}^1\times {\mathrm{173}}^1$

素因数の和:210

約数の個数: 40

約数和(自身を含む): 1515888

約数和(自身を除く): 871290

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 81, 138, 162, 173, 207, 346, 414, 519, 621, 1038, 1242, 1557, 1863, 3114, 3726, 3979, 4671, 7958, 9342, 11937, 14013, 23874, 28026, 35811, 71622, 107433, 214866, 322299, 644598]

約数ペア:

[(1, 644598), (2, 322299), (3, 214866), (6, 107433), (9, 71622), (18, 35811), (23, 28026), (27, 23874), (46, 14013), (54, 11937), (69, 9342), (81, 7958), (138, 4671), (162, 3979), (173, 3726), (207, 3114), (346, 1863), (414, 1557), (519, 1242), (621, 1038)]