20101730

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{449}}^1$

素因数の和:515

約数の個数: 48

約数和(自身を含む): 40937400

約数和(自身を除く): 20835670

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 74, 110, 121, 185, 242, 370, 407, 449, 605, 814, 898, 1210, 2035, 2245, 4070, 4477, 4490, 4939, 8954, 9878, 16613, 22385, 24695, 33226, 44770, 49390, 54329, 83065, 108658, 166130, 182743, 271645, 365486, 543290, 913715, 1827430, 2010173, 4020346, 10050865, 20101730]

約数ペア:

[(1, 20101730), (2, 10050865), (5, 4020346), (10, 2010173), (11, 1827430), (22, 913715), (37, 543290), (55, 365486), (74, 271645), (110, 182743), (121, 166130), (185, 108658), (242, 83065), (370, 54329), (407, 49390), (449, 44770), (605, 33226), (814, 24695), (898, 22385), (1210, 16613), (2035, 9878), (2245, 8954), (4070, 4939), (4477, 4490)]