21567840

素因数分解:

$2^5\times 3^1\times 5^1\times 7^3\times {\mathrm{131}}^1$

素因数の和:170

約数の個数: 192

約数和(自身を含む): 79833600

約数和(自身を除く): 58265760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 96, 98, 105, 112, 120, 131, 140, 147, 160, 168, 196, 210, 224, 240, 245, 262, 280, 294, 336, 343, 392, 393, 420, 480, 490, 524, 560, 588, 655, 672, 686, 735, 784, 786, 840, 917, 980, 1029, 1048, 1120, 1176, 1310, 1372, 1470, 1568, 1572, 1680, 1715, 1834, 1960, 1965, 2058, 2096, 2352, 2620, 2744, 2751, 2940, 3144, 3360, 3430, 3668, 3920, 3930, 4116, 4192, 4585, 4704, 5145, 5240, 5488, 5502, 5880, 6288, 6419, 6860, 7336, 7840, 7860, 8232, 9170, 10290, 10480, 10976, 11004, 11760, 12576, 12838, 13720, 13755, 14672, 15720, 16464, 18340, 19257, 20580, 20960, 22008, 23520, 25676, 27440, 27510, 29344, 31440, 32095, 32928, 36680, 38514, 41160, 44016, 44933, 51352, 54880, 55020, 62880, 64190, 73360, 77028, 82320, 88032, 89866, 96285, 102704, 110040, 128380, 134799, 146720, 154056, 164640, 179732, 192570, 205408, 220080, 224665, 256760, 269598, 308112, 359464, 385140, 440160, 449330, 513520, 539196, 616224, 673995, 718928, 770280, 898660, 1027040, 1078392, 1347990, 1437856, 1540560, 1797320, 2156784, 2695980, 3081120, 3594640, 4313568, 5391960, 7189280, 10783920, 21567840]

約数ペア:

[(1, 21567840), (2, 10783920), (3, 7189280), (4, 5391960), (5, 4313568), (6, 3594640), (7, 3081120), (8, 2695980), (10, 2156784), (12, 1797320), (14, 1540560), (15, 1437856), (16, 1347990), (20, 1078392), (21, 1027040), (24, 898660), (28, 770280), (30, 718928), (32, 673995), (35, 616224), (40, 539196), (42, 513520), (48, 449330), (49, 440160), (56, 385140), (60, 359464), (70, 308112), (80, 269598), (84, 256760), (96, 224665), (98, 220080), (105, 205408), (112, 192570), (120, 179732), (131, 164640), (140, 154056), (147, 146720), (160, 134799), (168, 128380), (196, 110040), (210, 102704), (224, 96285), (240, 89866), (245, 88032), (262, 82320), (280, 77028), (294, 73360), (336, 64190), (343, 62880), (392, 55020), (393, 54880), (420, 51352), (480, 44933), (490, 44016), (524, 41160), (560, 38514), (588, 36680), (655, 32928), (672, 32095), (686, 31440), (735, 29344), (784, 27510), (786, 27440), (840, 25676), (917, 23520), (980, 22008), (1029, 20960), (1048, 20580), (1120, 19257), (1176, 18340), (1310, 16464), (1372, 15720), (1470, 14672), (1568, 13755), (1572, 13720), (1680, 12838), (1715, 12576), (1834, 11760), (1960, 11004), (1965, 10976), (2058, 10480), (2096, 10290), (2352, 9170), (2620, 8232), (2744, 7860), (2751, 7840), (2940, 7336), (3144, 6860), (3360, 6419), (3430, 6288), (3668, 5880), (3920, 5502), (3930, 5488), (4116, 5240), (4192, 5145), (4585, 4704)]