64868440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1$

素因数の和:353

約数の個数: 128

約数和(自身を含む): 182891520

約数和(自身を除く): 118023080

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 71, 91, 104, 130, 140, 142, 182, 251, 260, 280, 284, 355, 364, 455, 497, 502, 520, 568, 710, 728, 910, 923, 994, 1004, 1255, 1420, 1757, 1820, 1846, 1988, 2008, 2485, 2510, 2840, 3263, 3514, 3640, 3692, 3976, 4615, 4970, 5020, 6461, 6526, 7028, 7384, 8785, 9230, 9940, 10040, 12922, 13052, 14056, 16315, 17570, 17821, 18460, 19880, 22841, 25844, 26104, 32305, 32630, 35140, 35642, 36920, 45682, 51688, 64610, 65260, 70280, 71284, 89105, 91364, 114205, 124747, 129220, 130520, 142568, 178210, 182728, 228410, 231673, 249494, 258440, 356420, 456820, 463346, 498988, 623735, 712840, 913640, 926692, 997976, 1158365, 1247470, 1621711, 1853384, 2316730, 2494940, 3243422, 4633460, 4989880, 6486844, 8108555, 9266920, 12973688, 16217110, 32434220, 64868440]

約数ペア:

[(1, 64868440), (2, 32434220), (4, 16217110), (5, 12973688), (7, 9266920), (8, 8108555), (10, 6486844), (13, 4989880), (14, 4633460), (20, 3243422), (26, 2494940), (28, 2316730), (35, 1853384), (40, 1621711), (52, 1247470), (56, 1158365), (65, 997976), (70, 926692), (71, 913640), (91, 712840), (104, 623735), (130, 498988), (140, 463346), (142, 456820), (182, 356420), (251, 258440), (260, 249494), (280, 231673), (284, 228410), (355, 182728), (364, 178210), (455, 142568), (497, 130520), (502, 129220), (520, 124747), (568, 114205), (710, 91364), (728, 89105), (910, 71284), (923, 70280), (994, 65260), (1004, 64610), (1255, 51688), (1420, 45682), (1757, 36920), (1820, 35642), (1846, 35140), (1988, 32630), (2008, 32305), (2485, 26104), (2510, 25844), (2840, 22841), (3263, 19880), (3514, 18460), (3640, 17821), (3692, 17570), (3976, 16315), (4615, 14056), (4970, 13052), (5020, 12922), (6461, 10040), (6526, 9940), (7028, 9230), (7384, 8785)]