256502432

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{439}}^1$

素因数の和:530

約数の個数: 72

約数和(自身を含む): 550519200

約数和(自身を除く): 294016768

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 62, 76, 124, 152, 248, 304, 439, 496, 589, 608, 878, 961, 992, 1178, 1756, 1922, 2356, 3512, 3844, 4712, 7024, 7688, 8341, 9424, 13609, 14048, 15376, 16682, 18259, 18848, 27218, 30752, 33364, 36518, 54436, 66728, 73036, 108872, 133456, 146072, 217744, 258571, 266912, 292144, 421879, 435488, 517142, 584288, 843758, 1034284, 1687516, 2068568, 3375032, 4137136, 6750064, 8015701, 8274272, 13500128, 16031402, 32062804, 64125608, 128251216, 256502432]

約数ペア:

[(1, 256502432), (2, 128251216), (4, 64125608), (8, 32062804), (16, 16031402), (19, 13500128), (31, 8274272), (32, 8015701), (38, 6750064), (62, 4137136), (76, 3375032), (124, 2068568), (152, 1687516), (248, 1034284), (304, 843758), (439, 584288), (496, 517142), (589, 435488), (608, 421879), (878, 292144), (961, 266912), (992, 258571), (1178, 217744), (1756, 146072), (1922, 133456), (2356, 108872), (3512, 73036), (3844, 66728), (4712, 54436), (7024, 36518), (7688, 33364), (8341, 30752), (9424, 27218), (13609, 18848), (14048, 18259), (15376, 16682)]