28220500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{733}}^1$

素因数の和:770

約数の個数: 96

約数和(自身を含む): 76946688

約数和(自身を除く): 48726188

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 110, 125, 140, 154, 175, 220, 250, 275, 308, 350, 385, 500, 550, 700, 733, 770, 875, 1100, 1375, 1466, 1540, 1750, 1925, 2750, 2932, 3500, 3665, 3850, 5131, 5500, 7330, 7700, 8063, 9625, 10262, 14660, 16126, 18325, 19250, 20524, 25655, 32252, 36650, 38500, 40315, 51310, 56441, 73300, 80630, 91625, 102620, 112882, 128275, 161260, 183250, 201575, 225764, 256550, 282205, 366500, 403150, 513100, 564410, 641375, 806300, 1007875, 1128820, 1282750, 1411025, 2015750, 2565500, 2822050, 4031500, 5644100, 7055125, 14110250, 28220500]

約数ペア:

[(1, 28220500), (2, 14110250), (4, 7055125), (5, 5644100), (7, 4031500), (10, 2822050), (11, 2565500), (14, 2015750), (20, 1411025), (22, 1282750), (25, 1128820), (28, 1007875), (35, 806300), (44, 641375), (50, 564410), (55, 513100), (70, 403150), (77, 366500), (100, 282205), (110, 256550), (125, 225764), (140, 201575), (154, 183250), (175, 161260), (220, 128275), (250, 112882), (275, 102620), (308, 91625), (350, 80630), (385, 73300), (500, 56441), (550, 51310), (700, 40315), (733, 38500), (770, 36650), (875, 32252), (1100, 25655), (1375, 20524), (1466, 19250), (1540, 18325), (1750, 16126), (1925, 14660), (2750, 10262), (2932, 9625), (3500, 8063), (3665, 7700), (3850, 7330), (5131, 5500)]