21770040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4219}}^1$

素因数の和:4276

約数の個数: 64

約数和(自身を含む): 66844800

約数和(自身を除く): 45074760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 430, 516, 645, 860, 1032, 1290, 1720, 2580, 4219, 5160, 8438, 12657, 16876, 21095, 25314, 33752, 42190, 50628, 63285, 84380, 101256, 126570, 168760, 181417, 253140, 362834, 506280, 544251, 725668, 907085, 1088502, 1451336, 1814170, 2177004, 2721255, 3628340, 4354008, 5442510, 7256680, 10885020, 21770040]

約数ペア:

[(1, 21770040), (2, 10885020), (3, 7256680), (4, 5442510), (5, 4354008), (6, 3628340), (8, 2721255), (10, 2177004), (12, 1814170), (15, 1451336), (20, 1088502), (24, 907085), (30, 725668), (40, 544251), (43, 506280), (60, 362834), (86, 253140), (120, 181417), (129, 168760), (172, 126570), (215, 101256), (258, 84380), (344, 63285), (430, 50628), (516, 42190), (645, 33752), (860, 25314), (1032, 21095), (1290, 16876), (1720, 12657), (2580, 8438), (4219, 5160)]