64861860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{397}}^1$

素因数の和:805

約数の個数: 96

約数和(自身を含む): 208615680

約数和(自身を除く): 143753820

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 389, 397, 420, 778, 794, 1167, 1191, 1556, 1588, 1945, 1985, 2334, 2382, 2723, 2779, 3890, 3970, 4668, 4764, 5446, 5558, 5835, 5955, 7780, 7940, 8169, 8337, 10892, 11116, 11670, 11910, 13615, 13895, 16338, 16674, 23340, 23820, 27230, 27790, 32676, 33348, 40845, 41685, 54460, 55580, 81690, 83370, 154433, 163380, 166740, 308866, 463299, 617732, 772165, 926598, 1081031, 1544330, 1853196, 2162062, 2316495, 3088660, 3243093, 4324124, 4632990, 5405155, 6486186, 9265980, 10810310, 12972372, 16215465, 21620620, 32430930, 64861860]

約数ペア:

[(1, 64861860), (2, 32430930), (3, 21620620), (4, 16215465), (5, 12972372), (6, 10810310), (7, 9265980), (10, 6486186), (12, 5405155), (14, 4632990), (15, 4324124), (20, 3243093), (21, 3088660), (28, 2316495), (30, 2162062), (35, 1853196), (42, 1544330), (60, 1081031), (70, 926598), (84, 772165), (105, 617732), (140, 463299), (210, 308866), (389, 166740), (397, 163380), (420, 154433), (778, 83370), (794, 81690), (1167, 55580), (1191, 54460), (1556, 41685), (1588, 40845), (1945, 33348), (1985, 32676), (2334, 27790), (2382, 27230), (2723, 23820), (2779, 23340), (3890, 16674), (3970, 16338), (4668, 13895), (4764, 13615), (5446, 11910), (5558, 11670), (5835, 11116), (5955, 10892), (7780, 8337), (7940, 8169)]