20531700

素因数分解:

$2^2\times 3^2\times 5^2\times 7^1\times {\mathrm{3259}}^1$

素因数の和:3286

約数の個数: 108

約数和(自身を含む): 73571680

約数和(自身を除く): 53039980

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, 50, 60, 63, 70, 75, 84, 90, 100, 105, 126, 140, 150, 175, 180, 210, 225, 252, 300, 315, 350, 420, 450, 525, 630, 700, 900, 1050, 1260, 1575, 2100, 3150, 3259, 6300, 6518, 9777, 13036, 16295, 19554, 22813, 29331, 32590, 39108, 45626, 48885, 58662, 65180, 68439, 81475, 91252, 97770, 114065, 117324, 136878, 146655, 162950, 195540, 205317, 228130, 244425, 273756, 293310, 325900, 342195, 410634, 456260, 488850, 570325, 586620, 684390, 733275, 821268, 977700, 1026585, 1140650, 1368780, 1466550, 1710975, 2053170, 2281300, 2933100, 3421950, 4106340, 5132925, 6843900, 10265850, 20531700]

約数ペア:

[(1, 20531700), (2, 10265850), (3, 6843900), (4, 5132925), (5, 4106340), (6, 3421950), (7, 2933100), (9, 2281300), (10, 2053170), (12, 1710975), (14, 1466550), (15, 1368780), (18, 1140650), (20, 1026585), (21, 977700), (25, 821268), (28, 733275), (30, 684390), (35, 586620), (36, 570325), (42, 488850), (45, 456260), (50, 410634), (60, 342195), (63, 325900), (70, 293310), (75, 273756), (84, 244425), (90, 228130), (100, 205317), (105, 195540), (126, 162950), (140, 146655), (150, 136878), (175, 117324), (180, 114065), (210, 97770), (225, 91252), (252, 81475), (300, 68439), (315, 65180), (350, 58662), (420, 48885), (450, 45626), (525, 39108), (630, 32590), (700, 29331), (900, 22813), (1050, 19554), (1260, 16295), (1575, 13036), (2100, 9777), (3150, 6518), (3259, 6300)]