28720422

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{401}}^1$

素因数の和:605

約数の個数: 48

約数和(自身を含む): 65471328

約数和(自身を除く): 36750906

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 173, 207, 346, 401, 414, 519, 802, 1038, 1203, 1557, 2406, 3114, 3609, 3979, 7218, 7958, 9223, 11937, 18446, 23874, 27669, 35811, 55338, 69373, 71622, 83007, 138746, 166014, 208119, 416238, 624357, 1248714, 1595579, 3191158, 4786737, 9573474, 14360211, 28720422]

約数ペア:

[(1, 28720422), (2, 14360211), (3, 9573474), (6, 4786737), (9, 3191158), (18, 1595579), (23, 1248714), (46, 624357), (69, 416238), (138, 208119), (173, 166014), (207, 138746), (346, 83007), (401, 71622), (414, 69373), (519, 55338), (802, 35811), (1038, 27669), (1203, 23874), (1557, 18446), (2406, 11937), (3114, 9223), (3609, 7958), (3979, 7218)]