20077089920

素因数分解:

$2^7\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{8597}}^1$

素因数の和:8746

約数の個数: 128

約数和(自身を含む): 49725673200

約数和(自身を除く): 29648583280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 89, 128, 160, 164, 178, 205, 320, 328, 356, 410, 445, 640, 656, 712, 820, 890, 1312, 1424, 1640, 1780, 2624, 2848, 3280, 3560, 3649, 5248, 5696, 6560, 7120, 7298, 8597, 11392, 13120, 14240, 14596, 17194, 18245, 26240, 28480, 29192, 34388, 36490, 42985, 56960, 58384, 68776, 72980, 85970, 116768, 137552, 145960, 171940, 233536, 275104, 291920, 343880, 352477, 467072, 550208, 583840, 687760, 704954, 765133, 1100416, 1167680, 1375520, 1409908, 1530266, 1762385, 2335360, 2751040, 2819816, 3060532, 3524770, 3825665, 5502080, 5639632, 6121064, 7049540, 7651330, 11279264, 12242128, 14099080, 15302660, 22558528, 24484256, 28198160, 30605320, 31370453, 45117056, 48968512, 56396320, 61210640, 62740906, 97937024, 112792640, 122421280, 125481812, 156852265, 225585280, 244842560, 250963624, 313704530, 489685120, 501927248, 627409060, 1003854496, 1254818120, 2007708992, 2509636240, 4015417984, 5019272480, 10038544960, 20077089920]

約数ペア:

[(1, 20077089920), (2, 10038544960), (4, 5019272480), (5, 4015417984), (8, 2509636240), (10, 2007708992), (16, 1254818120), (20, 1003854496), (32, 627409060), (40, 501927248), (41, 489685120), (64, 313704530), (80, 250963624), (82, 244842560), (89, 225585280), (128, 156852265), (160, 125481812), (164, 122421280), (178, 112792640), (205, 97937024), (320, 62740906), (328, 61210640), (356, 56396320), (410, 48968512), (445, 45117056), (640, 31370453), (656, 30605320), (712, 28198160), (820, 24484256), (890, 22558528), (1312, 15302660), (1424, 14099080), (1640, 12242128), (1780, 11279264), (2624, 7651330), (2848, 7049540), (3280, 6121064), (3560, 5639632), (3649, 5502080), (5248, 3825665), (5696, 3524770), (6560, 3060532), (7120, 2819816), (7298, 2751040), (8597, 2335360), (11392, 1762385), (13120, 1530266), (14240, 1409908), (14596, 1375520), (17194, 1167680), (18245, 1100416), (26240, 765133), (28480, 704954), (29192, 687760), (34388, 583840), (36490, 550208), (42985, 467072), (56960, 352477), (58384, 343880), (68776, 291920), (72980, 275104), (85970, 233536), (116768, 171940), (137552, 145960)]