20091864

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{907}}^1$

素因数の和:1000

約数の個数: 64

約数和(自身を含む): 54915840

約数和(自身を除く): 34823976

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 71, 78, 104, 142, 156, 213, 284, 312, 426, 568, 852, 907, 923, 1704, 1814, 1846, 2721, 2769, 3628, 3692, 5442, 5538, 7256, 7384, 10884, 11076, 11791, 21768, 22152, 23582, 35373, 47164, 64397, 70746, 94328, 128794, 141492, 193191, 257588, 282984, 386382, 515176, 772764, 837161, 1545528, 1674322, 2511483, 3348644, 5022966, 6697288, 10045932, 20091864]

約数ペア:

[(1, 20091864), (2, 10045932), (3, 6697288), (4, 5022966), (6, 3348644), (8, 2511483), (12, 1674322), (13, 1545528), (24, 837161), (26, 772764), (39, 515176), (52, 386382), (71, 282984), (78, 257588), (104, 193191), (142, 141492), (156, 128794), (213, 94328), (284, 70746), (312, 64397), (426, 47164), (568, 35373), (852, 23582), (907, 22152), (923, 21768), (1704, 11791), (1814, 11076), (1846, 10884), (2721, 7384), (2769, 7256), (3628, 5538), (3692, 5442)]