1781566180

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1\times {\mathrm{8923}}^1$

素因数の和:9148

約数の個数: 48

約数和(自身を含む): 3823041600

約数和(自身を除く): 2041475420

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 149, 268, 298, 335, 596, 670, 745, 1340, 1490, 2980, 8923, 9983, 17846, 19966, 35692, 39932, 44615, 49915, 89230, 99830, 178460, 199660, 597841, 1195682, 1329527, 2391364, 2659054, 2989205, 5318108, 5978410, 6647635, 11956820, 13295270, 26590540, 89078309, 178156618, 356313236, 445391545, 890783090, 1781566180]

約数ペア:

[(1, 1781566180), (2, 890783090), (4, 445391545), (5, 356313236), (10, 178156618), (20, 89078309), (67, 26590540), (134, 13295270), (149, 11956820), (268, 6647635), (298, 5978410), (335, 5318108), (596, 2989205), (670, 2659054), (745, 2391364), (1340, 1329527), (1490, 1195682), (2980, 597841), (8923, 199660), (9983, 178460), (17846, 99830), (19966, 89230), (35692, 49915), (39932, 44615)]