28988640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{491}}^1$

素因数の和:553

約数の個数: 144

約数和(自身を含む): 101542896

約数和(自身を除く): 72554256

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 41, 45, 48, 60, 72, 80, 82, 90, 96, 120, 123, 144, 160, 164, 180, 205, 240, 246, 288, 328, 360, 369, 410, 480, 491, 492, 615, 656, 720, 738, 820, 982, 984, 1230, 1312, 1440, 1473, 1476, 1640, 1845, 1964, 1968, 2455, 2460, 2946, 2952, 3280, 3690, 3928, 3936, 4419, 4910, 4920, 5892, 5904, 6560, 7365, 7380, 7856, 8838, 9820, 9840, 11784, 11808, 14730, 14760, 15712, 17676, 19640, 19680, 20131, 22095, 23568, 29460, 29520, 35352, 39280, 40262, 44190, 47136, 58920, 59040, 60393, 70704, 78560, 80524, 88380, 100655, 117840, 120786, 141408, 161048, 176760, 181179, 201310, 235680, 241572, 301965, 322096, 353520, 362358, 402620, 483144, 603930, 644192, 707040, 724716, 805240, 905895, 966288, 1207860, 1449432, 1610480, 1811790, 1932576, 2415720, 2898864, 3220960, 3623580, 4831440, 5797728, 7247160, 9662880, 14494320, 28988640]

約数ペア:

[(1, 28988640), (2, 14494320), (3, 9662880), (4, 7247160), (5, 5797728), (6, 4831440), (8, 3623580), (9, 3220960), (10, 2898864), (12, 2415720), (15, 1932576), (16, 1811790), (18, 1610480), (20, 1449432), (24, 1207860), (30, 966288), (32, 905895), (36, 805240), (40, 724716), (41, 707040), (45, 644192), (48, 603930), (60, 483144), (72, 402620), (80, 362358), (82, 353520), (90, 322096), (96, 301965), (120, 241572), (123, 235680), (144, 201310), (160, 181179), (164, 176760), (180, 161048), (205, 141408), (240, 120786), (246, 117840), (288, 100655), (328, 88380), (360, 80524), (369, 78560), (410, 70704), (480, 60393), (491, 59040), (492, 58920), (615, 47136), (656, 44190), (720, 40262), (738, 39280), (820, 35352), (982, 29520), (984, 29460), (1230, 23568), (1312, 22095), (1440, 20131), (1473, 19680), (1476, 19640), (1640, 17676), (1845, 15712), (1964, 14760), (1968, 14730), (2455, 11808), (2460, 11784), (2946, 9840), (2952, 9820), (3280, 8838), (3690, 7856), (3928, 7380), (3936, 7365), (4419, 6560), (4910, 5904), (4920, 5892)]