256164584

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{379}}^1$

素因数の和:562

約数の個数: 64

約数和(自身を含む): 531787200

約数和(自身を除く): 275622616

約数列:

[1, 2, 4, 8, 13, 26, 52, 67, 97, 104, 134, 194, 268, 379, 388, 536, 758, 776, 871, 1261, 1516, 1742, 2522, 3032, 3484, 4927, 5044, 6499, 6968, 9854, 10088, 12998, 19708, 25393, 25996, 36763, 39416, 50786, 51992, 73526, 84487, 101572, 147052, 168974, 203144, 294104, 330109, 337948, 477919, 660218, 675896, 955838, 1320436, 1911676, 2463121, 2640872, 3823352, 4926242, 9852484, 19704968, 32020573, 64041146, 128082292, 256164584]

約数ペア:

[(1, 256164584), (2, 128082292), (4, 64041146), (8, 32020573), (13, 19704968), (26, 9852484), (52, 4926242), (67, 3823352), (97, 2640872), (104, 2463121), (134, 1911676), (194, 1320436), (268, 955838), (379, 675896), (388, 660218), (536, 477919), (758, 337948), (776, 330109), (871, 294104), (1261, 203144), (1516, 168974), (1742, 147052), (2522, 101572), (3032, 84487), (3484, 73526), (4927, 51992), (5044, 50786), (6499, 39416), (6968, 36763), (9854, 25996), (10088, 25393), (12998, 19708)]