28780500

素因数分解:

$2^2\times 3^1\times 5^3\times 7^1\times {\mathrm{2741}}^1$

素因数の和:2770

約数の個数: 96

約数和(自身を含む): 95816448

約数和(自身を除く): 67035948

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 125, 140, 150, 175, 210, 250, 300, 350, 375, 420, 500, 525, 700, 750, 875, 1050, 1500, 1750, 2100, 2625, 2741, 3500, 5250, 5482, 8223, 10500, 10964, 13705, 16446, 19187, 27410, 32892, 38374, 41115, 54820, 57561, 68525, 76748, 82230, 95935, 115122, 137050, 164460, 191870, 205575, 230244, 274100, 287805, 342625, 383740, 411150, 479675, 575610, 685250, 822300, 959350, 1027875, 1151220, 1370500, 1439025, 1918700, 2055750, 2398375, 2878050, 4111500, 4796750, 5756100, 7195125, 9593500, 14390250, 28780500]

約数ペア:

[(1, 28780500), (2, 14390250), (3, 9593500), (4, 7195125), (5, 5756100), (6, 4796750), (7, 4111500), (10, 2878050), (12, 2398375), (14, 2055750), (15, 1918700), (20, 1439025), (21, 1370500), (25, 1151220), (28, 1027875), (30, 959350), (35, 822300), (42, 685250), (50, 575610), (60, 479675), (70, 411150), (75, 383740), (84, 342625), (100, 287805), (105, 274100), (125, 230244), (140, 205575), (150, 191870), (175, 164460), (210, 137050), (250, 115122), (300, 95935), (350, 82230), (375, 76748), (420, 68525), (500, 57561), (525, 54820), (700, 41115), (750, 38374), (875, 32892), (1050, 27410), (1500, 19187), (1750, 16446), (2100, 13705), (2625, 10964), (2741, 10500), (3500, 8223), (5250, 5482)]