168705420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{216289}}^1$

素因数の和:216314

約数の個数: 48

約数和(自身を含む): 508714080

約数和(自身を除く): 340008660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 216289, 432578, 648867, 865156, 1081445, 1297734, 2162890, 2595468, 2811757, 3244335, 4325780, 5623514, 6488670, 8435271, 11247028, 12977340, 14058785, 16870542, 28117570, 33741084, 42176355, 56235140, 84352710, 168705420]

約数ペア:

[(1, 168705420), (2, 84352710), (3, 56235140), (4, 42176355), (5, 33741084), (6, 28117570), (10, 16870542), (12, 14058785), (13, 12977340), (15, 11247028), (20, 8435271), (26, 6488670), (30, 5623514), (39, 4325780), (52, 3244335), (60, 2811757), (65, 2595468), (78, 2162890), (130, 1297734), (156, 1081445), (195, 865156), (260, 648867), (390, 432578), (780, 216289)]