21302520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{167}}^1\times {\mathrm{1063}}^1$

素因数の和:1244

約数の個数: 64

約数和(自身を含む): 64350720

約数和(自身を除く): 43048200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 167, 334, 501, 668, 835, 1002, 1063, 1336, 1670, 2004, 2126, 2505, 3189, 3340, 4008, 4252, 5010, 5315, 6378, 6680, 8504, 10020, 10630, 12756, 15945, 20040, 21260, 25512, 31890, 42520, 63780, 127560, 177521, 355042, 532563, 710084, 887605, 1065126, 1420168, 1775210, 2130252, 2662815, 3550420, 4260504, 5325630, 7100840, 10651260, 21302520]

約数ペア:

[(1, 21302520), (2, 10651260), (3, 7100840), (4, 5325630), (5, 4260504), (6, 3550420), (8, 2662815), (10, 2130252), (12, 1775210), (15, 1420168), (20, 1065126), (24, 887605), (30, 710084), (40, 532563), (60, 355042), (120, 177521), (167, 127560), (334, 63780), (501, 42520), (668, 31890), (835, 25512), (1002, 21260), (1063, 20040), (1336, 15945), (1670, 12756), (2004, 10630), (2126, 10020), (2505, 8504), (3189, 6680), (3340, 6378), (4008, 5315), (4252, 5010)]