278596700

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{1361}}^1$

素因数の和:1487

約数の個数: 72

約数和(自身を含む): 638396640

約数和(自身を除く): 359799940

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 89, 92, 100, 115, 178, 230, 356, 445, 460, 575, 890, 1150, 1361, 1780, 2047, 2225, 2300, 2722, 4094, 4450, 5444, 6805, 8188, 8900, 10235, 13610, 20470, 27220, 31303, 34025, 40940, 51175, 62606, 68050, 102350, 121129, 125212, 136100, 156515, 204700, 242258, 313030, 484516, 605645, 626060, 782575, 1211290, 1565150, 2422580, 2785967, 3028225, 3130300, 5571934, 6056450, 11143868, 12112900, 13929835, 27859670, 55719340, 69649175, 139298350, 278596700]

約数ペア:

[(1, 278596700), (2, 139298350), (4, 69649175), (5, 55719340), (10, 27859670), (20, 13929835), (23, 12112900), (25, 11143868), (46, 6056450), (50, 5571934), (89, 3130300), (92, 3028225), (100, 2785967), (115, 2422580), (178, 1565150), (230, 1211290), (356, 782575), (445, 626060), (460, 605645), (575, 484516), (890, 313030), (1150, 242258), (1361, 204700), (1780, 156515), (2047, 136100), (2225, 125212), (2300, 121129), (2722, 102350), (4094, 68050), (4450, 62606), (5444, 51175), (6805, 40940), (8188, 34025), (8900, 31303), (10235, 27220), (13610, 20470)]