280694880

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{491}}^1$

素因数の和:909

約数の個数: 144

約数和(自身を含む): 962239824

約数和(自身を除く): 681544944

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 397, 480, 491, 720, 794, 982, 1191, 1440, 1473, 1588, 1964, 1985, 2382, 2455, 2946, 3176, 3573, 3928, 3970, 4419, 4764, 4910, 5892, 5955, 6352, 7146, 7365, 7856, 7940, 8838, 9528, 9820, 11784, 11910, 12704, 14292, 14730, 15712, 15880, 17676, 17865, 19056, 19640, 22095, 23568, 23820, 28584, 29460, 31760, 35352, 35730, 38112, 39280, 44190, 47136, 47640, 57168, 58920, 63520, 70704, 71460, 78560, 88380, 95280, 114336, 117840, 141408, 142920, 176760, 190560, 194927, 235680, 285840, 353520, 389854, 571680, 584781, 707040, 779708, 974635, 1169562, 1559416, 1754343, 1949270, 2339124, 2923905, 3118832, 3508686, 3898540, 4678248, 5847810, 6237664, 7017372, 7797080, 8771715, 9356496, 11695620, 14034744, 15594160, 17543430, 18712992, 23391240, 28069488, 31188320, 35086860, 46782480, 56138976, 70173720, 93564960, 140347440, 280694880]

約数ペア:

[(1, 280694880), (2, 140347440), (3, 93564960), (4, 70173720), (5, 56138976), (6, 46782480), (8, 35086860), (9, 31188320), (10, 28069488), (12, 23391240), (15, 18712992), (16, 17543430), (18, 15594160), (20, 14034744), (24, 11695620), (30, 9356496), (32, 8771715), (36, 7797080), (40, 7017372), (45, 6237664), (48, 5847810), (60, 4678248), (72, 3898540), (80, 3508686), (90, 3118832), (96, 2923905), (120, 2339124), (144, 1949270), (160, 1754343), (180, 1559416), (240, 1169562), (288, 974635), (360, 779708), (397, 707040), (480, 584781), (491, 571680), (720, 389854), (794, 353520), (982, 285840), (1191, 235680), (1440, 194927), (1473, 190560), (1588, 176760), (1964, 142920), (1985, 141408), (2382, 117840), (2455, 114336), (2946, 95280), (3176, 88380), (3573, 78560), (3928, 71460), (3970, 70704), (4419, 63520), (4764, 58920), (4910, 57168), (5892, 47640), (5955, 47136), (6352, 44190), (7146, 39280), (7365, 38112), (7856, 35730), (7940, 35352), (8838, 31760), (9528, 29460), (9820, 28584), (11784, 23820), (11910, 23568), (12704, 22095), (14292, 19640), (14730, 19056), (15712, 17865), (15880, 17676)]