20870200

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{349}}^1$

素因数の和:401

約数の個数: 96

約数和(自身を含む): 54684000

約数和(自身を除く): 33813800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 25, 26, 40, 46, 50, 52, 65, 92, 100, 104, 115, 130, 184, 200, 230, 260, 299, 325, 349, 460, 520, 575, 598, 650, 698, 920, 1150, 1196, 1300, 1396, 1495, 1745, 2300, 2392, 2600, 2792, 2990, 3490, 4537, 4600, 5980, 6980, 7475, 8027, 8725, 9074, 11960, 13960, 14950, 16054, 17450, 18148, 22685, 29900, 32108, 34900, 36296, 40135, 45370, 59800, 64216, 69800, 80270, 90740, 104351, 113425, 160540, 181480, 200675, 208702, 226850, 321080, 401350, 417404, 453700, 521755, 802700, 834808, 907400, 1043510, 1605400, 2087020, 2608775, 4174040, 5217550, 10435100, 20870200]

約数ペア:

[(1, 20870200), (2, 10435100), (4, 5217550), (5, 4174040), (8, 2608775), (10, 2087020), (13, 1605400), (20, 1043510), (23, 907400), (25, 834808), (26, 802700), (40, 521755), (46, 453700), (50, 417404), (52, 401350), (65, 321080), (92, 226850), (100, 208702), (104, 200675), (115, 181480), (130, 160540), (184, 113425), (200, 104351), (230, 90740), (260, 80270), (299, 69800), (325, 64216), (349, 59800), (460, 45370), (520, 40135), (575, 36296), (598, 34900), (650, 32108), (698, 29900), (920, 22685), (1150, 18148), (1196, 17450), (1300, 16054), (1396, 14950), (1495, 13960), (1745, 11960), (2300, 9074), (2392, 8725), (2600, 8027), (2792, 7475), (2990, 6980), (3490, 5980), (4537, 4600)]