66499860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{22619}}^1$

素因数の和:22645

約数の個数: 72

約数和(自身を含む): 216609120

約数和(自身を除く): 150109260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 22619, 45238, 67857, 90476, 113095, 135714, 158333, 226190, 271428, 316666, 339285, 452380, 474999, 633332, 678570, 791665, 949998, 1108331, 1357140, 1583330, 1899996, 2216662, 2374995, 3166660, 3324993, 4433324, 4749990, 5541655, 6649986, 9499980, 11083310, 13299972, 16624965, 22166620, 33249930, 66499860]

約数ペア:

[(1, 66499860), (2, 33249930), (3, 22166620), (4, 16624965), (5, 13299972), (6, 11083310), (7, 9499980), (10, 6649986), (12, 5541655), (14, 4749990), (15, 4433324), (20, 3324993), (21, 3166660), (28, 2374995), (30, 2216662), (35, 1899996), (42, 1583330), (49, 1357140), (60, 1108331), (70, 949998), (84, 791665), (98, 678570), (105, 633332), (140, 474999), (147, 452380), (196, 339285), (210, 316666), (245, 271428), (294, 226190), (420, 158333), (490, 135714), (588, 113095), (735, 90476), (980, 67857), (1470, 45238), (2940, 22619)]