21457680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{3083}}^1$

素因数の和:3128

約数の個数: 80

約数和(自身を含む): 68834880

約数和(自身を除く): 47377200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 40, 48, 58, 60, 80, 87, 116, 120, 145, 174, 232, 240, 290, 348, 435, 464, 580, 696, 870, 1160, 1392, 1740, 2320, 3083, 3480, 6166, 6960, 9249, 12332, 15415, 18498, 24664, 30830, 36996, 46245, 49328, 61660, 73992, 89407, 92490, 123320, 147984, 178814, 184980, 246640, 268221, 357628, 369960, 447035, 536442, 715256, 739920, 894070, 1072884, 1341105, 1430512, 1788140, 2145768, 2682210, 3576280, 4291536, 5364420, 7152560, 10728840, 21457680]

約数ペア:

[(1, 21457680), (2, 10728840), (3, 7152560), (4, 5364420), (5, 4291536), (6, 3576280), (8, 2682210), (10, 2145768), (12, 1788140), (15, 1430512), (16, 1341105), (20, 1072884), (24, 894070), (29, 739920), (30, 715256), (40, 536442), (48, 447035), (58, 369960), (60, 357628), (80, 268221), (87, 246640), (116, 184980), (120, 178814), (145, 147984), (174, 123320), (232, 92490), (240, 89407), (290, 73992), (348, 61660), (435, 49328), (464, 46245), (580, 36996), (696, 30830), (870, 24664), (1160, 18498), (1392, 15415), (1740, 12332), (2320, 9249), (3083, 6960), (3480, 6166)]