220500

素因数分解:

$2^2\times 3^2\times 5^3\times 7^2$

素因数の和:39

約数の個数: 108

約数和(自身を含む): 809172

約数和(自身を除く): 588672

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 35, 36, 42, 45, 49, 50, 60, 63, 70, 75, 84, 90, 98, 100, 105, 125, 126, 140, 147, 150, 175, 180, 196, 210, 225, 245, 250, 252, 294, 300, 315, 350, 375, 420, 441, 450, 490, 500, 525, 588, 630, 700, 735, 750, 875, 882, 900, 980, 1050, 1125, 1225, 1260, 1470, 1500, 1575, 1750, 1764, 2100, 2205, 2250, 2450, 2625, 2940, 3150, 3500, 3675, 4410, 4500, 4900, 5250, 6125, 6300, 7350, 7875, 8820, 10500, 11025, 12250, 14700, 15750, 18375, 22050, 24500, 31500, 36750, 44100, 55125, 73500, 110250, 220500]

約数ペア:

[(1, 220500), (2, 110250), (3, 73500), (4, 55125), (5, 44100), (6, 36750), (7, 31500), (9, 24500), (10, 22050), (12, 18375), (14, 15750), (15, 14700), (18, 12250), (20, 11025), (21, 10500), (25, 8820), (28, 7875), (30, 7350), (35, 6300), (36, 6125), (42, 5250), (45, 4900), (49, 4500), (50, 4410), (60, 3675), (63, 3500), (70, 3150), (75, 2940), (84, 2625), (90, 2450), (98, 2250), (100, 2205), (105, 2100), (125, 1764), (126, 1750), (140, 1575), (147, 1500), (150, 1470), (175, 1260), (180, 1225), (196, 1125), (210, 1050), (225, 980), (245, 900), (250, 882), (252, 875), (294, 750), (300, 735), (315, 700), (350, 630), (375, 588), (420, 525), (441, 500), (450, 490)]