20946960

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{619}}^1$

素因数の和:685

約数の個数: 120

約数和(自身を含む): 71959680

約数和(自身を除く): 51012720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 47, 48, 60, 72, 80, 90, 94, 120, 141, 144, 180, 188, 235, 240, 282, 360, 376, 423, 470, 564, 619, 705, 720, 752, 846, 940, 1128, 1238, 1410, 1692, 1857, 1880, 2115, 2256, 2476, 2820, 3095, 3384, 3714, 3760, 4230, 4952, 5571, 5640, 6190, 6768, 7428, 8460, 9285, 9904, 11142, 11280, 12380, 14856, 16920, 18570, 22284, 24760, 27855, 29093, 29712, 33840, 37140, 44568, 49520, 55710, 58186, 74280, 87279, 89136, 111420, 116372, 145465, 148560, 174558, 222840, 232744, 261837, 290930, 349116, 436395, 445680, 465488, 523674, 581860, 698232, 872790, 1047348, 1163720, 1309185, 1396464, 1745580, 2094696, 2327440, 2618370, 3491160, 4189392, 5236740, 6982320, 10473480, 20946960]

約数ペア:

[(1, 20946960), (2, 10473480), (3, 6982320), (4, 5236740), (5, 4189392), (6, 3491160), (8, 2618370), (9, 2327440), (10, 2094696), (12, 1745580), (15, 1396464), (16, 1309185), (18, 1163720), (20, 1047348), (24, 872790), (30, 698232), (36, 581860), (40, 523674), (45, 465488), (47, 445680), (48, 436395), (60, 349116), (72, 290930), (80, 261837), (90, 232744), (94, 222840), (120, 174558), (141, 148560), (144, 145465), (180, 116372), (188, 111420), (235, 89136), (240, 87279), (282, 74280), (360, 58186), (376, 55710), (423, 49520), (470, 44568), (564, 37140), (619, 33840), (705, 29712), (720, 29093), (752, 27855), (846, 24760), (940, 22284), (1128, 18570), (1238, 16920), (1410, 14856), (1692, 12380), (1857, 11280), (1880, 11142), (2115, 9904), (2256, 9285), (2476, 8460), (2820, 7428), (3095, 6768), (3384, 6190), (3714, 5640), (3760, 5571), (4230, 4952)]