399234080

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{257}}^1$

素因数の和:371

約数の個数: 192

約数和(自身を含む): 1154684160

約数和(自身を除く): 755450080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 70, 73, 76, 80, 95, 112, 133, 140, 146, 152, 160, 190, 224, 257, 266, 280, 292, 304, 365, 380, 511, 514, 532, 560, 584, 608, 665, 730, 760, 1022, 1028, 1064, 1120, 1168, 1285, 1330, 1387, 1460, 1520, 1799, 2044, 2056, 2128, 2336, 2555, 2570, 2660, 2774, 2920, 3040, 3598, 4088, 4112, 4256, 4883, 5110, 5140, 5320, 5548, 5840, 6935, 7196, 8176, 8224, 8995, 9709, 9766, 10220, 10280, 10640, 11096, 11680, 13870, 14392, 16352, 17990, 18761, 19418, 19532, 20440, 20560, 21280, 22192, 24415, 27740, 28784, 34181, 35980, 37522, 38836, 39064, 40880, 41120, 44384, 48545, 48830, 55480, 57568, 68362, 71960, 75044, 77672, 78128, 81760, 93805, 97090, 97660, 110960, 131327, 136724, 143920, 150088, 155344, 156256, 170905, 187610, 194180, 195320, 221920, 262654, 273448, 287840, 300176, 310688, 341810, 356459, 375220, 388360, 390640, 525308, 546896, 600352, 656635, 683620, 712918, 750440, 776720, 781280, 1050616, 1093792, 1313270, 1367240, 1425836, 1500880, 1553440, 1782295, 2101232, 2495213, 2626540, 2734480, 2851672, 3001760, 3564590, 4202464, 4990426, 5253080, 5468960, 5703344, 7129180, 9980852, 10506160, 11406688, 12476065, 14258360, 19961704, 21012320, 24952130, 28516720, 39923408, 49904260, 57033440, 79846816, 99808520, 199617040, 399234080]

約数ペア:

[(1, 399234080), (2, 199617040), (4, 99808520), (5, 79846816), (7, 57033440), (8, 49904260), (10, 39923408), (14, 28516720), (16, 24952130), (19, 21012320), (20, 19961704), (28, 14258360), (32, 12476065), (35, 11406688), (38, 10506160), (40, 9980852), (56, 7129180), (70, 5703344), (73, 5468960), (76, 5253080), (80, 4990426), (95, 4202464), (112, 3564590), (133, 3001760), (140, 2851672), (146, 2734480), (152, 2626540), (160, 2495213), (190, 2101232), (224, 1782295), (257, 1553440), (266, 1500880), (280, 1425836), (292, 1367240), (304, 1313270), (365, 1093792), (380, 1050616), (511, 781280), (514, 776720), (532, 750440), (560, 712918), (584, 683620), (608, 656635), (665, 600352), (730, 546896), (760, 525308), (1022, 390640), (1028, 388360), (1064, 375220), (1120, 356459), (1168, 341810), (1285, 310688), (1330, 300176), (1387, 287840), (1460, 273448), (1520, 262654), (1799, 221920), (2044, 195320), (2056, 194180), (2128, 187610), (2336, 170905), (2555, 156256), (2570, 155344), (2660, 150088), (2774, 143920), (2920, 136724), (3040, 131327), (3598, 110960), (4088, 97660), (4112, 97090), (4256, 93805), (4883, 81760), (5110, 78128), (5140, 77672), (5320, 75044), (5548, 71960), (5840, 68362), (6935, 57568), (7196, 55480), (8176, 48830), (8224, 48545), (8995, 44384), (9709, 41120), (9766, 40880), (10220, 39064), (10280, 38836), (10640, 37522), (11096, 35980), (11680, 34181), (13870, 28784), (14392, 27740), (16352, 24415), (17990, 22192), (18761, 21280), (19418, 20560), (19532, 20440)]