81901680

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{48751}}^1$

素因数の和:48774

約数の個数: 80

約数和(自身を含む): 290171904

約数和(自身を除く): 208270224

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 48751, 97502, 146253, 195004, 243755, 292506, 341257, 390008, 487510, 585012, 682514, 731265, 780016, 975020, 1023771, 1170024, 1365028, 1462530, 1706285, 1950040, 2047542, 2340048, 2730056, 2925060, 3412570, 3900080, 4095084, 5118855, 5460112, 5850120, 6825140, 8190168, 10237710, 11700240, 13650280, 16380336, 20475420, 27300560, 40950840, 81901680]

約数ペア:

[(1, 81901680), (2, 40950840), (3, 27300560), (4, 20475420), (5, 16380336), (6, 13650280), (7, 11700240), (8, 10237710), (10, 8190168), (12, 6825140), (14, 5850120), (15, 5460112), (16, 5118855), (20, 4095084), (21, 3900080), (24, 3412570), (28, 2925060), (30, 2730056), (35, 2340048), (40, 2047542), (42, 1950040), (48, 1706285), (56, 1462530), (60, 1365028), (70, 1170024), (80, 1023771), (84, 975020), (105, 780016), (112, 731265), (120, 682514), (140, 585012), (168, 487510), (210, 390008), (240, 341257), (280, 292506), (336, 243755), (420, 195004), (560, 146253), (840, 97502), (1680, 48751)]