20407744168

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{503}}^1\times {\mathrm{23371}}^1$

素因数の和:23918

約数の個数: 64

約数和(自身を含む): 45233233920

約数和(自身を除く): 24825489752

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 503, 868, 1006, 1736, 2012, 3521, 4024, 7042, 14084, 15593, 23371, 28168, 31186, 46742, 62372, 93484, 109151, 124744, 163597, 186968, 218302, 327194, 436604, 654388, 724501, 873208, 1308776, 1449002, 2898004, 5071507, 5796008, 10143014, 11755613, 20286028, 23511226, 40572056, 47022452, 82289291, 94044904, 164578582, 329157164, 364424003, 658314328, 728848006, 1457696012, 2550968021, 2915392024, 5101936042, 10203872084, 20407744168]

約数ペア:

[(1, 20407744168), (2, 10203872084), (4, 5101936042), (7, 2915392024), (8, 2550968021), (14, 1457696012), (28, 728848006), (31, 658314328), (56, 364424003), (62, 329157164), (124, 164578582), (217, 94044904), (248, 82289291), (434, 47022452), (503, 40572056), (868, 23511226), (1006, 20286028), (1736, 11755613), (2012, 10143014), (3521, 5796008), (4024, 5071507), (7042, 2898004), (14084, 1449002), (15593, 1308776), (23371, 873208), (28168, 724501), (31186, 654388), (46742, 436604), (62372, 327194), (93484, 218302), (109151, 186968), (124744, 163597)]