647895040

素因数分解:

$2^{11}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:228

約数の個数: 192

約数和(自身を含む): 1739162880

約数和(自身を除く): 1091267840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 157, 160, 208, 248, 256, 260, 310, 314, 320, 403, 416, 496, 512, 520, 620, 628, 640, 785, 806, 832, 992, 1024, 1040, 1240, 1256, 1280, 1570, 1612, 1664, 1984, 2015, 2041, 2048, 2080, 2480, 2512, 2560, 3140, 3224, 3328, 3968, 4030, 4082, 4160, 4867, 4960, 5024, 5120, 6280, 6448, 6656, 7936, 8060, 8164, 8320, 9734, 9920, 10048, 10205, 10240, 12560, 12896, 13312, 15872, 16120, 16328, 16640, 19468, 19840, 20096, 20410, 24335, 25120, 25792, 26624, 31744, 32240, 32656, 33280, 38936, 39680, 40192, 40820, 48670, 50240, 51584, 63271, 63488, 64480, 65312, 66560, 77872, 79360, 80384, 81640, 97340, 100480, 103168, 126542, 128960, 130624, 133120, 155744, 158720, 160768, 163280, 194680, 200960, 206336, 253084, 257920, 261248, 311488, 316355, 317440, 321536, 326560, 389360, 401920, 412672, 506168, 515840, 522496, 622976, 632710, 653120, 778720, 803840, 825344, 1012336, 1031680, 1044992, 1245952, 1265420, 1306240, 1557440, 1607680, 2024672, 2063360, 2089984, 2491904, 2530840, 2612480, 3114880, 4049344, 4126720, 4179968, 4983808, 5061680, 5224960, 6229760, 8098688, 9967616, 10123360, 10449920, 12459520, 16197376, 20246720, 20899840, 24919040, 32394752, 40493440, 49838080, 64789504, 80986880, 129579008, 161973760, 323947520, 647895040]

約数ペア:

[(1, 647895040), (2, 323947520), (4, 161973760), (5, 129579008), (8, 80986880), (10, 64789504), (13, 49838080), (16, 40493440), (20, 32394752), (26, 24919040), (31, 20899840), (32, 20246720), (40, 16197376), (52, 12459520), (62, 10449920), (64, 10123360), (65, 9967616), (80, 8098688), (104, 6229760), (124, 5224960), (128, 5061680), (130, 4983808), (155, 4179968), (157, 4126720), (160, 4049344), (208, 3114880), (248, 2612480), (256, 2530840), (260, 2491904), (310, 2089984), (314, 2063360), (320, 2024672), (403, 1607680), (416, 1557440), (496, 1306240), (512, 1265420), (520, 1245952), (620, 1044992), (628, 1031680), (640, 1012336), (785, 825344), (806, 803840), (832, 778720), (992, 653120), (1024, 632710), (1040, 622976), (1240, 522496), (1256, 515840), (1280, 506168), (1570, 412672), (1612, 401920), (1664, 389360), (1984, 326560), (2015, 321536), (2041, 317440), (2048, 316355), (2080, 311488), (2480, 261248), (2512, 257920), (2560, 253084), (3140, 206336), (3224, 200960), (3328, 194680), (3968, 163280), (4030, 160768), (4082, 158720), (4160, 155744), (4867, 133120), (4960, 130624), (5024, 128960), (5120, 126542), (6280, 103168), (6448, 100480), (6656, 97340), (7936, 81640), (8060, 80384), (8164, 79360), (8320, 77872), (9734, 66560), (9920, 65312), (10048, 64480), (10205, 63488), (10240, 63271), (12560, 51584), (12896, 50240), (13312, 48670), (15872, 40820), (16120, 40192), (16328, 39680), (16640, 38936), (19468, 33280), (19840, 32656), (20096, 32240), (20410, 31744), (24335, 26624), (25120, 25792)]