261713808

素因数分解:

$2^4\times 3^3\times {\mathrm{421}}^1\times {\mathrm{1439}}^1$

素因数の和:1877

約数の個数: 80

約数和(自身を含む): 753523200

約数和(自身を除く): 491809392

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 144, 216, 421, 432, 842, 1263, 1439, 1684, 2526, 2878, 3368, 3789, 4317, 5052, 5756, 6736, 7578, 8634, 10104, 11367, 11512, 12951, 15156, 17268, 20208, 22734, 23024, 25902, 30312, 34536, 38853, 45468, 51804, 60624, 69072, 77706, 90936, 103608, 155412, 181872, 207216, 310824, 605819, 621648, 1211638, 1817457, 2423276, 3634914, 4846552, 5452371, 7269828, 9693104, 10904742, 14539656, 16357113, 21809484, 29079312, 32714226, 43618968, 65428452, 87237936, 130856904, 261713808]

約数ペア:

[(1, 261713808), (2, 130856904), (3, 87237936), (4, 65428452), (6, 43618968), (8, 32714226), (9, 29079312), (12, 21809484), (16, 16357113), (18, 14539656), (24, 10904742), (27, 9693104), (36, 7269828), (48, 5452371), (54, 4846552), (72, 3634914), (108, 2423276), (144, 1817457), (216, 1211638), (421, 621648), (432, 605819), (842, 310824), (1263, 207216), (1439, 181872), (1684, 155412), (2526, 103608), (2878, 90936), (3368, 77706), (3789, 69072), (4317, 60624), (5052, 51804), (5756, 45468), (6736, 38853), (7578, 34536), (8634, 30312), (10104, 25902), (11367, 23024), (11512, 22734), (12951, 20208), (15156, 17268)]