81770425

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{17491}}^1$

素因数の和:17529

約数の個数: 24

約数和(自身を含む): 117126432

約数和(自身を除く): 35356007

約数列:

[1, 5, 11, 17, 25, 55, 85, 187, 275, 425, 935, 4675, 17491, 87455, 192401, 297347, 437275, 962005, 1486735, 3270817, 4810025, 7433675, 16354085, 81770425]

約数ペア:

[(1, 81770425), (5, 16354085), (11, 7433675), (17, 4810025), (25, 3270817), (55, 1486735), (85, 962005), (187, 437275), (275, 297347), (425, 192401), (935, 87455), (4675, 17491)]