20170180

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{281}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 44107056

約数和(自身を除く): 23936876

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 97, 148, 185, 194, 281, 370, 388, 485, 562, 740, 970, 1124, 1405, 1940, 2810, 3589, 5620, 7178, 10397, 14356, 17945, 20794, 27257, 35890, 41588, 51985, 54514, 71780, 103970, 109028, 136285, 207940, 272570, 545140, 1008509, 2017018, 4034036, 5042545, 10085090, 20170180]

約数ペア:

[(1, 20170180), (2, 10085090), (4, 5042545), (5, 4034036), (10, 2017018), (20, 1008509), (37, 545140), (74, 272570), (97, 207940), (148, 136285), (185, 109028), (194, 103970), (281, 71780), (370, 54514), (388, 51985), (485, 41588), (562, 35890), (740, 27257), (970, 20794), (1124, 17945), (1405, 14356), (1940, 10397), (2810, 7178), (3589, 5620)]