21028080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2137}}^1$

素因数の和:2194

約数の個数: 80

約数和(自身を含む): 66808224

約数和(自身を除く): 45780144

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 41, 48, 60, 80, 82, 120, 123, 164, 205, 240, 246, 328, 410, 492, 615, 656, 820, 984, 1230, 1640, 1968, 2137, 2460, 3280, 4274, 4920, 6411, 8548, 9840, 10685, 12822, 17096, 21370, 25644, 32055, 34192, 42740, 51288, 64110, 85480, 87617, 102576, 128220, 170960, 175234, 256440, 262851, 350468, 438085, 512880, 525702, 700936, 876170, 1051404, 1314255, 1401872, 1752340, 2102808, 2628510, 3504680, 4205616, 5257020, 7009360, 10514040, 21028080]

約数ペア:

[(1, 21028080), (2, 10514040), (3, 7009360), (4, 5257020), (5, 4205616), (6, 3504680), (8, 2628510), (10, 2102808), (12, 1752340), (15, 1401872), (16, 1314255), (20, 1051404), (24, 876170), (30, 700936), (40, 525702), (41, 512880), (48, 438085), (60, 350468), (80, 262851), (82, 256440), (120, 175234), (123, 170960), (164, 128220), (205, 102576), (240, 87617), (246, 85480), (328, 64110), (410, 51288), (492, 42740), (615, 34192), (656, 32055), (820, 25644), (984, 21370), (1230, 17096), (1640, 12822), (1968, 10685), (2137, 9840), (2460, 8548), (3280, 6411), (4274, 4920)]