2017796140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{12491}}^1$

素因数の和:12738

約数の個数: 48

約数和(自身を含む): 4363105824

約数和(自身を除く): 2345309684

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 197, 205, 394, 410, 788, 820, 985, 1970, 3940, 8077, 12491, 16154, 24982, 32308, 40385, 49964, 62455, 80770, 124910, 161540, 249820, 512131, 1024262, 2048524, 2460727, 2560655, 4921454, 5121310, 9842908, 10242620, 12303635, 24607270, 49214540, 100889807, 201779614, 403559228, 504449035, 1008898070, 2017796140]

約数ペア:

[(1, 2017796140), (2, 1008898070), (4, 504449035), (5, 403559228), (10, 201779614), (20, 100889807), (41, 49214540), (82, 24607270), (164, 12303635), (197, 10242620), (205, 9842908), (394, 5121310), (410, 4921454), (788, 2560655), (820, 2460727), (985, 2048524), (1970, 1024262), (3940, 512131), (8077, 249820), (12491, 161540), (16154, 124910), (24982, 80770), (32308, 62455), (40385, 49964)]