641863495

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{1471}}^1$

素因数の和:1640

約数の個数: 48

約数和(自身を含む): 972615168

約数和(自身を除く): 330751673

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 137, 245, 455, 637, 685, 959, 1471, 1781, 3185, 4795, 6713, 7355, 8905, 10297, 12467, 19123, 33565, 51485, 62335, 72079, 87269, 95615, 133861, 201527, 360395, 436345, 669305, 937027, 1007635, 1410689, 2619851, 4685135, 7053445, 9874823, 13099255, 18338957, 49374115, 91694785, 128372699, 641863495]

約数ペア:

[(1, 641863495), (5, 128372699), (7, 91694785), (13, 49374115), (35, 18338957), (49, 13099255), (65, 9874823), (91, 7053445), (137, 4685135), (245, 2619851), (455, 1410689), (637, 1007635), (685, 937027), (959, 669305), (1471, 436345), (1781, 360395), (3185, 201527), (4795, 133861), (6713, 95615), (7355, 87269), (8905, 72079), (10297, 62335), (12467, 51485), (19123, 33565)]