21584280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:193

約数の個数: 128

約数和(自身を含む): 68428800

約数和(自身を除く): 46844520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 47, 60, 86, 89, 94, 120, 129, 141, 172, 178, 188, 215, 235, 258, 267, 282, 344, 356, 376, 430, 445, 470, 516, 534, 564, 645, 705, 712, 860, 890, 940, 1032, 1068, 1128, 1290, 1335, 1410, 1720, 1780, 1880, 2021, 2136, 2580, 2670, 2820, 3560, 3827, 4042, 4183, 5160, 5340, 5640, 6063, 7654, 8084, 8366, 10105, 10680, 11481, 12126, 12549, 15308, 16168, 16732, 19135, 20210, 20915, 22962, 24252, 25098, 30315, 30616, 33464, 38270, 40420, 41830, 45924, 48504, 50196, 57405, 60630, 62745, 76540, 80840, 83660, 91848, 100392, 114810, 121260, 125490, 153080, 167320, 179869, 229620, 242520, 250980, 359738, 459240, 501960, 539607, 719476, 899345, 1079214, 1438952, 1798690, 2158428, 2698035, 3597380, 4316856, 5396070, 7194760, 10792140, 21584280]

約数ペア:

[(1, 21584280), (2, 10792140), (3, 7194760), (4, 5396070), (5, 4316856), (6, 3597380), (8, 2698035), (10, 2158428), (12, 1798690), (15, 1438952), (20, 1079214), (24, 899345), (30, 719476), (40, 539607), (43, 501960), (47, 459240), (60, 359738), (86, 250980), (89, 242520), (94, 229620), (120, 179869), (129, 167320), (141, 153080), (172, 125490), (178, 121260), (188, 114810), (215, 100392), (235, 91848), (258, 83660), (267, 80840), (282, 76540), (344, 62745), (356, 60630), (376, 57405), (430, 50196), (445, 48504), (470, 45924), (516, 41830), (534, 40420), (564, 38270), (645, 33464), (705, 30616), (712, 30315), (860, 25098), (890, 24252), (940, 22962), (1032, 20915), (1068, 20210), (1128, 19135), (1290, 16732), (1335, 16168), (1410, 15308), (1720, 12549), (1780, 12126), (1880, 11481), (2021, 10680), (2136, 10105), (2580, 8366), (2670, 8084), (2820, 7654), (3560, 6063), (3827, 5640), (4042, 5340), (4183, 5160)]