18217800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{349}}^1$

素因数の和:400

約数の個数: 144

約数和(自身を含む): 63472500

約数和(自身を除く): 45254700

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 29, 30, 36, 40, 45, 50, 58, 60, 72, 75, 87, 90, 100, 116, 120, 145, 150, 174, 180, 200, 225, 232, 261, 290, 300, 348, 349, 360, 435, 450, 522, 580, 600, 696, 698, 725, 870, 900, 1044, 1047, 1160, 1305, 1396, 1450, 1740, 1745, 1800, 2088, 2094, 2175, 2610, 2792, 2900, 3141, 3480, 3490, 4188, 4350, 5220, 5235, 5800, 6282, 6525, 6980, 8376, 8700, 8725, 10121, 10440, 10470, 12564, 13050, 13960, 15705, 17400, 17450, 20242, 20940, 25128, 26100, 26175, 30363, 31410, 34900, 40484, 41880, 50605, 52200, 52350, 60726, 62820, 69800, 78525, 80968, 91089, 101210, 104700, 121452, 125640, 151815, 157050, 182178, 202420, 209400, 242904, 253025, 303630, 314100, 364356, 404840, 455445, 506050, 607260, 628200, 728712, 759075, 910890, 1012100, 1214520, 1518150, 1821780, 2024200, 2277225, 3036300, 3643560, 4554450, 6072600, 9108900, 18217800]

約数ペア:

[(1, 18217800), (2, 9108900), (3, 6072600), (4, 4554450), (5, 3643560), (6, 3036300), (8, 2277225), (9, 2024200), (10, 1821780), (12, 1518150), (15, 1214520), (18, 1012100), (20, 910890), (24, 759075), (25, 728712), (29, 628200), (30, 607260), (36, 506050), (40, 455445), (45, 404840), (50, 364356), (58, 314100), (60, 303630), (72, 253025), (75, 242904), (87, 209400), (90, 202420), (100, 182178), (116, 157050), (120, 151815), (145, 125640), (150, 121452), (174, 104700), (180, 101210), (200, 91089), (225, 80968), (232, 78525), (261, 69800), (290, 62820), (300, 60726), (348, 52350), (349, 52200), (360, 50605), (435, 41880), (450, 40484), (522, 34900), (580, 31410), (600, 30363), (696, 26175), (698, 26100), (725, 25128), (870, 20940), (900, 20242), (1044, 17450), (1047, 17400), (1160, 15705), (1305, 13960), (1396, 13050), (1450, 12564), (1740, 10470), (1745, 10440), (1800, 10121), (2088, 8725), (2094, 8700), (2175, 8376), (2610, 6980), (2792, 6525), (2900, 6282), (3141, 5800), (3480, 5235), (3490, 5220), (4188, 4350)]