19954085

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 26611200

約数和(自身を除く): 6657115

約数列:

[1, 5, 19, 41, 47, 95, 109, 205, 235, 545, 779, 893, 1927, 2071, 3895, 4465, 4469, 5123, 9635, 10355, 22345, 25615, 36613, 84911, 97337, 183065, 210043, 424555, 486685, 1050215, 3990817, 19954085]

約数ペア:

[(1, 19954085), (5, 3990817), (19, 1050215), (41, 486685), (47, 424555), (95, 210043), (109, 183065), (205, 97337), (235, 84911), (545, 36613), (779, 25615), (893, 22345), (1927, 10355), (2071, 9635), (3895, 5123), (4465, 4469)]