21458080

素因数分解:

$2^5\times 5^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:76

約数の個数: 192

約数和(自身を含む): 65318400

約数和(自身を除く): 43860320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 23, 28, 32, 34, 35, 40, 46, 49, 56, 68, 70, 80, 85, 92, 98, 112, 115, 119, 136, 140, 160, 161, 170, 184, 196, 224, 230, 238, 245, 272, 280, 322, 340, 343, 368, 391, 392, 460, 476, 490, 544, 560, 595, 644, 680, 686, 736, 782, 784, 805, 833, 920, 952, 980, 1120, 1127, 1190, 1288, 1360, 1372, 1564, 1568, 1610, 1666, 1715, 1840, 1904, 1955, 1960, 2254, 2380, 2576, 2720, 2737, 2744, 3128, 3220, 3332, 3430, 3680, 3808, 3910, 3920, 4165, 4508, 4760, 5152, 5474, 5488, 5635, 5831, 6256, 6440, 6664, 6860, 7820, 7840, 7889, 8330, 9016, 9520, 10948, 10976, 11270, 11662, 12512, 12880, 13328, 13685, 13720, 15640, 15778, 16660, 18032, 19040, 19159, 21896, 22540, 23324, 25760, 26656, 27370, 27440, 29155, 31280, 31556, 33320, 36064, 38318, 39445, 43792, 45080, 46648, 54740, 54880, 58310, 62560, 63112, 66640, 76636, 78890, 87584, 90160, 93296, 95795, 109480, 116620, 126224, 133280, 134113, 153272, 157780, 180320, 186592, 191590, 218960, 233240, 252448, 268226, 306544, 315560, 383180, 437920, 466480, 536452, 613088, 631120, 670565, 766360, 932960, 1072904, 1262240, 1341130, 1532720, 2145808, 2682260, 3065440, 4291616, 5364520, 10729040, 21458080]

約数ペア:

[(1, 21458080), (2, 10729040), (4, 5364520), (5, 4291616), (7, 3065440), (8, 2682260), (10, 2145808), (14, 1532720), (16, 1341130), (17, 1262240), (20, 1072904), (23, 932960), (28, 766360), (32, 670565), (34, 631120), (35, 613088), (40, 536452), (46, 466480), (49, 437920), (56, 383180), (68, 315560), (70, 306544), (80, 268226), (85, 252448), (92, 233240), (98, 218960), (112, 191590), (115, 186592), (119, 180320), (136, 157780), (140, 153272), (160, 134113), (161, 133280), (170, 126224), (184, 116620), (196, 109480), (224, 95795), (230, 93296), (238, 90160), (245, 87584), (272, 78890), (280, 76636), (322, 66640), (340, 63112), (343, 62560), (368, 58310), (391, 54880), (392, 54740), (460, 46648), (476, 45080), (490, 43792), (544, 39445), (560, 38318), (595, 36064), (644, 33320), (680, 31556), (686, 31280), (736, 29155), (782, 27440), (784, 27370), (805, 26656), (833, 25760), (920, 23324), (952, 22540), (980, 21896), (1120, 19159), (1127, 19040), (1190, 18032), (1288, 16660), (1360, 15778), (1372, 15640), (1564, 13720), (1568, 13685), (1610, 13328), (1666, 12880), (1715, 12512), (1840, 11662), (1904, 11270), (1955, 10976), (1960, 10948), (2254, 9520), (2380, 9016), (2576, 8330), (2720, 7889), (2737, 7840), (2744, 7820), (3128, 6860), (3220, 6664), (3332, 6440), (3430, 6256), (3680, 5831), (3808, 5635), (3910, 5488), (3920, 5474), (4165, 5152), (4508, 4760)]