78211840

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:107

約数の個数: 216

約数和(自身を含む): 230685840

約数和(自身を除く): 152474000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 43, 49, 56, 58, 64, 70, 80, 86, 98, 112, 116, 128, 140, 145, 160, 172, 196, 203, 215, 224, 232, 245, 256, 280, 290, 301, 320, 344, 392, 406, 430, 448, 464, 490, 560, 580, 602, 640, 688, 784, 812, 860, 896, 928, 980, 1015, 1120, 1160, 1204, 1247, 1280, 1376, 1421, 1505, 1568, 1624, 1720, 1792, 1856, 1960, 2030, 2107, 2240, 2320, 2408, 2494, 2752, 2842, 3010, 3136, 3248, 3440, 3712, 3920, 4060, 4214, 4480, 4640, 4816, 4988, 5504, 5684, 6020, 6235, 6272, 6496, 6880, 7105, 7424, 7840, 8120, 8428, 8729, 8960, 9280, 9632, 9976, 10535, 11008, 11368, 12040, 12470, 12544, 12992, 13760, 14210, 15680, 16240, 16856, 17458, 18560, 19264, 19952, 21070, 22736, 24080, 24940, 25984, 27520, 28420, 31360, 32480, 33712, 34916, 37120, 38528, 39904, 42140, 43645, 45472, 48160, 49880, 51968, 55040, 56840, 61103, 62720, 64960, 67424, 69832, 77056, 79808, 84280, 87290, 90944, 96320, 99760, 113680, 122206, 129920, 134848, 139664, 159616, 168560, 174580, 181888, 192640, 199520, 227360, 244412, 259840, 269696, 279328, 305515, 319232, 337120, 349160, 363776, 385280, 399040, 454720, 488824, 539392, 558656, 611030, 674240, 698320, 798080, 909440, 977648, 1117312, 1222060, 1348480, 1396640, 1596160, 1818880, 1955296, 2234624, 2444120, 2696960, 2793280, 3910592, 4888240, 5586560, 7821184, 9776480, 11173120, 15642368, 19552960, 39105920, 78211840]

約数ペア:

[(1, 78211840), (2, 39105920), (4, 19552960), (5, 15642368), (7, 11173120), (8, 9776480), (10, 7821184), (14, 5586560), (16, 4888240), (20, 3910592), (28, 2793280), (29, 2696960), (32, 2444120), (35, 2234624), (40, 1955296), (43, 1818880), (49, 1596160), (56, 1396640), (58, 1348480), (64, 1222060), (70, 1117312), (80, 977648), (86, 909440), (98, 798080), (112, 698320), (116, 674240), (128, 611030), (140, 558656), (145, 539392), (160, 488824), (172, 454720), (196, 399040), (203, 385280), (215, 363776), (224, 349160), (232, 337120), (245, 319232), (256, 305515), (280, 279328), (290, 269696), (301, 259840), (320, 244412), (344, 227360), (392, 199520), (406, 192640), (430, 181888), (448, 174580), (464, 168560), (490, 159616), (560, 139664), (580, 134848), (602, 129920), (640, 122206), (688, 113680), (784, 99760), (812, 96320), (860, 90944), (896, 87290), (928, 84280), (980, 79808), (1015, 77056), (1120, 69832), (1160, 67424), (1204, 64960), (1247, 62720), (1280, 61103), (1376, 56840), (1421, 55040), (1505, 51968), (1568, 49880), (1624, 48160), (1720, 45472), (1792, 43645), (1856, 42140), (1960, 39904), (2030, 38528), (2107, 37120), (2240, 34916), (2320, 33712), (2408, 32480), (2494, 31360), (2752, 28420), (2842, 27520), (3010, 25984), (3136, 24940), (3248, 24080), (3440, 22736), (3712, 21070), (3920, 19952), (4060, 19264), (4214, 18560), (4480, 17458), (4640, 16856), (4816, 16240), (4988, 15680), (5504, 14210), (5684, 13760), (6020, 12992), (6235, 12544), (6272, 12470), (6496, 12040), (6880, 11368), (7105, 11008), (7424, 10535), (7840, 9976), (8120, 9632), (8428, 9280), (8729, 8960)]