221070720

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{521}}^1$

素因数の和:573

約数の個数: 256

約数和(自身を含む): 805049280

約数和(自身を除く): 583978560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 17, 20, 24, 26, 30, 32, 34, 39, 40, 48, 51, 52, 60, 64, 65, 68, 78, 80, 85, 96, 102, 104, 120, 128, 130, 136, 156, 160, 170, 192, 195, 204, 208, 221, 240, 255, 260, 272, 312, 320, 340, 384, 390, 408, 416, 442, 480, 510, 520, 521, 544, 624, 640, 663, 680, 780, 816, 832, 884, 960, 1020, 1040, 1042, 1088, 1105, 1248, 1326, 1360, 1560, 1563, 1632, 1664, 1768, 1920, 2040, 2080, 2084, 2176, 2210, 2496, 2605, 2652, 2720, 3120, 3126, 3264, 3315, 3536, 4080, 4160, 4168, 4420, 4992, 5210, 5304, 5440, 6240, 6252, 6528, 6630, 6773, 7072, 7815, 8160, 8320, 8336, 8840, 8857, 10420, 10608, 10880, 12480, 12504, 13260, 13546, 14144, 15630, 16320, 16672, 17680, 17714, 20319, 20840, 21216, 24960, 25008, 26520, 26571, 27092, 28288, 31260, 32640, 33344, 33865, 35360, 35428, 40638, 41680, 42432, 44285, 50016, 53040, 53142, 54184, 62520, 66688, 67730, 70720, 70856, 81276, 83360, 84864, 88570, 100032, 101595, 106080, 106284, 108368, 115141, 125040, 132855, 135460, 141440, 141712, 162552, 166720, 177140, 200064, 203190, 212160, 212568, 216736, 230282, 250080, 265710, 270920, 283424, 325104, 333440, 345423, 354280, 406380, 424320, 425136, 433472, 460564, 500160, 531420, 541840, 566848, 575705, 650208, 690846, 708560, 812760, 850272, 866944, 921128, 1000320, 1062840, 1083680, 1133696, 1151410, 1300416, 1381692, 1417120, 1625520, 1700544, 1727115, 1842256, 2125680, 2167360, 2302820, 2600832, 2763384, 2834240, 3251040, 3401088, 3454230, 3684512, 4251360, 4334720, 4605640, 5526768, 5668480, 6502080, 6908460, 7369024, 8502720, 9211280, 11053536, 13004160, 13816920, 14738048, 17005440, 18422560, 22107072, 27633840, 36845120, 44214144, 55267680, 73690240, 110535360, 221070720]

約数ペア:

[(1, 221070720), (2, 110535360), (3, 73690240), (4, 55267680), (5, 44214144), (6, 36845120), (8, 27633840), (10, 22107072), (12, 18422560), (13, 17005440), (15, 14738048), (16, 13816920), (17, 13004160), (20, 11053536), (24, 9211280), (26, 8502720), (30, 7369024), (32, 6908460), (34, 6502080), (39, 5668480), (40, 5526768), (48, 4605640), (51, 4334720), (52, 4251360), (60, 3684512), (64, 3454230), (65, 3401088), (68, 3251040), (78, 2834240), (80, 2763384), (85, 2600832), (96, 2302820), (102, 2167360), (104, 2125680), (120, 1842256), (128, 1727115), (130, 1700544), (136, 1625520), (156, 1417120), (160, 1381692), (170, 1300416), (192, 1151410), (195, 1133696), (204, 1083680), (208, 1062840), (221, 1000320), (240, 921128), (255, 866944), (260, 850272), (272, 812760), (312, 708560), (320, 690846), (340, 650208), (384, 575705), (390, 566848), (408, 541840), (416, 531420), (442, 500160), (480, 460564), (510, 433472), (520, 425136), (521, 424320), (544, 406380), (624, 354280), (640, 345423), (663, 333440), (680, 325104), (780, 283424), (816, 270920), (832, 265710), (884, 250080), (960, 230282), (1020, 216736), (1040, 212568), (1042, 212160), (1088, 203190), (1105, 200064), (1248, 177140), (1326, 166720), (1360, 162552), (1560, 141712), (1563, 141440), (1632, 135460), (1664, 132855), (1768, 125040), (1920, 115141), (2040, 108368), (2080, 106284), (2084, 106080), (2176, 101595), (2210, 100032), (2496, 88570), (2605, 84864), (2652, 83360), (2720, 81276), (3120, 70856), (3126, 70720), (3264, 67730), (3315, 66688), (3536, 62520), (4080, 54184), (4160, 53142), (4168, 53040), (4420, 50016), (4992, 44285), (5210, 42432), (5304, 41680), (5440, 40638), (6240, 35428), (6252, 35360), (6528, 33865), (6630, 33344), (6773, 32640), (7072, 31260), (7815, 28288), (8160, 27092), (8320, 26571), (8336, 26520), (8840, 25008), (8857, 24960), (10420, 21216), (10608, 20840), (10880, 20319), (12480, 17714), (12504, 17680), (13260, 16672), (13546, 16320), (14144, 15630)]