20581680

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12251}}^1$

素因数の和:12274

約数の個数: 80

約数和(自身を含む): 72923904

約数和(自身を除く): 52342224

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, 12251, 24502, 36753, 49004, 61255, 73506, 85757, 98008, 122510, 147012, 171514, 183765, 196016, 245020, 257271, 294024, 343028, 367530, 428785, 490040, 514542, 588048, 686056, 735060, 857570, 980080, 1029084, 1286355, 1372112, 1470120, 1715140, 2058168, 2572710, 2940240, 3430280, 4116336, 5145420, 6860560, 10290840, 20581680]

約数ペア:

[(1, 20581680), (2, 10290840), (3, 6860560), (4, 5145420), (5, 4116336), (6, 3430280), (7, 2940240), (8, 2572710), (10, 2058168), (12, 1715140), (14, 1470120), (15, 1372112), (16, 1286355), (20, 1029084), (21, 980080), (24, 857570), (28, 735060), (30, 686056), (35, 588048), (40, 514542), (42, 490040), (48, 428785), (56, 367530), (60, 343028), (70, 294024), (80, 257271), (84, 245020), (105, 196016), (112, 183765), (120, 171514), (140, 147012), (168, 122510), (210, 98008), (240, 85757), (280, 73506), (336, 61255), (420, 49004), (560, 36753), (840, 24502), (1680, 12251)]