390778857

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{859}}^1$

素因数の和:987

約数の個数: 64

約数和(自身を含む): 693504000

約数和(自身を除く): 302725143

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 83, 87, 189, 203, 249, 261, 581, 609, 747, 783, 859, 1743, 1827, 2241, 2407, 2577, 5229, 5481, 6013, 7221, 7731, 15687, 16849, 18039, 21663, 23193, 24911, 50547, 54117, 64989, 71297, 74733, 151641, 162351, 174377, 213891, 224199, 454923, 499079, 523131, 641673, 672597, 1497237, 1569393, 1925019, 2067613, 4491711, 4708179, 6202839, 13475133, 14473291, 18608517, 43419873, 55825551, 130259619, 390778857]

約数ペア:

[(1, 390778857), (3, 130259619), (7, 55825551), (9, 43419873), (21, 18608517), (27, 14473291), (29, 13475133), (63, 6202839), (83, 4708179), (87, 4491711), (189, 2067613), (203, 1925019), (249, 1569393), (261, 1497237), (581, 672597), (609, 641673), (747, 523131), (783, 499079), (859, 454923), (1743, 224199), (1827, 213891), (2241, 174377), (2407, 162351), (2577, 151641), (5229, 74733), (5481, 71297), (6013, 64989), (7221, 54117), (7731, 50547), (15687, 24911), (16849, 23193), (18039, 21663)]