19982700

素因数分解:

$2^2\times 3^4\times 5^2\times {\mathrm{2467}}^1$

素因数の和:2493

約数の個数: 90

約数和(自身を含む): 64802276

約数和(自身を除く): 44819576

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 81, 90, 100, 108, 135, 150, 162, 180, 225, 270, 300, 324, 405, 450, 540, 675, 810, 900, 1350, 1620, 2025, 2467, 2700, 4050, 4934, 7401, 8100, 9868, 12335, 14802, 22203, 24670, 29604, 37005, 44406, 49340, 61675, 66609, 74010, 88812, 111015, 123350, 133218, 148020, 185025, 199827, 222030, 246700, 266436, 333045, 370050, 399654, 444060, 555075, 666090, 740100, 799308, 999135, 1110150, 1332180, 1665225, 1998270, 2220300, 3330450, 3996540, 4995675, 6660900, 9991350, 19982700]

約数ペア:

[(1, 19982700), (2, 9991350), (3, 6660900), (4, 4995675), (5, 3996540), (6, 3330450), (9, 2220300), (10, 1998270), (12, 1665225), (15, 1332180), (18, 1110150), (20, 999135), (25, 799308), (27, 740100), (30, 666090), (36, 555075), (45, 444060), (50, 399654), (54, 370050), (60, 333045), (75, 266436), (81, 246700), (90, 222030), (100, 199827), (108, 185025), (135, 148020), (150, 133218), (162, 123350), (180, 111015), (225, 88812), (270, 74010), (300, 66609), (324, 61675), (405, 49340), (450, 44406), (540, 37005), (675, 29604), (810, 24670), (900, 22203), (1350, 14802), (1620, 12335), (2025, 9868), (2467, 8100), (2700, 7401), (4050, 4934)]