278329129

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:337

約数の個数: 32

約数和(自身を含む): 321076224

約数和(自身を除く): 42747095

約数列:

[1, 13, 31, 53, 83, 157, 403, 689, 1079, 1643, 2041, 2573, 4399, 4867, 8321, 13031, 21359, 33449, 57187, 63271, 108173, 136369, 169403, 257951, 403961, 690643, 1772797, 3353363, 5251493, 8978359, 21409933, 278329129]

約数ペア:

[(1, 278329129), (13, 21409933), (31, 8978359), (53, 5251493), (83, 3353363), (157, 1772797), (403, 690643), (689, 403961), (1079, 257951), (1643, 169403), (2041, 136369), (2573, 108173), (4399, 63271), (4867, 57187), (8321, 33449), (13031, 21359)]