81990300

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{39043}}^1$

素因数の和:39067

約数の個数: 72

約数和(自身を含む): 271121536

約数和(自身を除く): 189131236

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, 140, 150, 175, 210, 300, 350, 420, 525, 700, 1050, 2100, 39043, 78086, 117129, 156172, 195215, 234258, 273301, 390430, 468516, 546602, 585645, 780860, 819903, 976075, 1093204, 1171290, 1366505, 1639806, 1952150, 2342580, 2733010, 2928225, 3279612, 3904300, 4099515, 5466020, 5856450, 6832525, 8199030, 11712900, 13665050, 16398060, 20497575, 27330100, 40995150, 81990300]

約数ペア:

[(1, 81990300), (2, 40995150), (3, 27330100), (4, 20497575), (5, 16398060), (6, 13665050), (7, 11712900), (10, 8199030), (12, 6832525), (14, 5856450), (15, 5466020), (20, 4099515), (21, 3904300), (25, 3279612), (28, 2928225), (30, 2733010), (35, 2342580), (42, 1952150), (50, 1639806), (60, 1366505), (70, 1171290), (75, 1093204), (84, 976075), (100, 819903), (105, 780860), (140, 585645), (150, 546602), (175, 468516), (210, 390430), (300, 273301), (350, 234258), (420, 195215), (525, 156172), (700, 117129), (1050, 78086), (2100, 39043)]