257761280

素因数分解:

$2^{13}\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:98

約数の個数: 224

約数和(自身を含む): 754928640

約数和(自身を除く): 497167360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 31, 32, 35, 40, 56, 58, 62, 64, 70, 80, 112, 116, 124, 128, 140, 145, 155, 160, 203, 217, 224, 232, 248, 256, 280, 290, 310, 320, 406, 434, 448, 464, 496, 512, 560, 580, 620, 640, 812, 868, 896, 899, 928, 992, 1015, 1024, 1085, 1120, 1160, 1240, 1280, 1624, 1736, 1792, 1798, 1856, 1984, 2030, 2048, 2170, 2240, 2320, 2480, 2560, 3248, 3472, 3584, 3596, 3712, 3968, 4060, 4096, 4340, 4480, 4495, 4640, 4960, 5120, 6293, 6496, 6944, 7168, 7192, 7424, 7936, 8120, 8192, 8680, 8960, 8990, 9280, 9920, 10240, 12586, 12992, 13888, 14336, 14384, 14848, 15872, 16240, 17360, 17920, 17980, 18560, 19840, 20480, 25172, 25984, 27776, 28672, 28768, 29696, 31465, 31744, 32480, 34720, 35840, 35960, 37120, 39680, 40960, 50344, 51968, 55552, 57344, 57536, 59392, 62930, 63488, 64960, 69440, 71680, 71920, 74240, 79360, 100688, 103936, 111104, 115072, 118784, 125860, 126976, 129920, 138880, 143360, 143840, 148480, 158720, 201376, 207872, 222208, 230144, 237568, 251720, 253952, 259840, 277760, 286720, 287680, 296960, 317440, 402752, 415744, 444416, 460288, 503440, 519680, 555520, 575360, 593920, 634880, 805504, 831488, 888832, 920576, 1006880, 1039360, 1111040, 1150720, 1187840, 1269760, 1611008, 1662976, 1777664, 1841152, 2013760, 2078720, 2222080, 2301440, 3222016, 3682304, 4027520, 4157440, 4444160, 4602880, 6444032, 7364608, 8055040, 8314880, 8888320, 9205760, 12888064, 16110080, 18411520, 25776128, 32220160, 36823040, 51552256, 64440320, 128880640, 257761280]

約数ペア:

[(1, 257761280), (2, 128880640), (4, 64440320), (5, 51552256), (7, 36823040), (8, 32220160), (10, 25776128), (14, 18411520), (16, 16110080), (20, 12888064), (28, 9205760), (29, 8888320), (31, 8314880), (32, 8055040), (35, 7364608), (40, 6444032), (56, 4602880), (58, 4444160), (62, 4157440), (64, 4027520), (70, 3682304), (80, 3222016), (112, 2301440), (116, 2222080), (124, 2078720), (128, 2013760), (140, 1841152), (145, 1777664), (155, 1662976), (160, 1611008), (203, 1269760), (217, 1187840), (224, 1150720), (232, 1111040), (248, 1039360), (256, 1006880), (280, 920576), (290, 888832), (310, 831488), (320, 805504), (406, 634880), (434, 593920), (448, 575360), (464, 555520), (496, 519680), (512, 503440), (560, 460288), (580, 444416), (620, 415744), (640, 402752), (812, 317440), (868, 296960), (896, 287680), (899, 286720), (928, 277760), (992, 259840), (1015, 253952), (1024, 251720), (1085, 237568), (1120, 230144), (1160, 222208), (1240, 207872), (1280, 201376), (1624, 158720), (1736, 148480), (1792, 143840), (1798, 143360), (1856, 138880), (1984, 129920), (2030, 126976), (2048, 125860), (2170, 118784), (2240, 115072), (2320, 111104), (2480, 103936), (2560, 100688), (3248, 79360), (3472, 74240), (3584, 71920), (3596, 71680), (3712, 69440), (3968, 64960), (4060, 63488), (4096, 62930), (4340, 59392), (4480, 57536), (4495, 57344), (4640, 55552), (4960, 51968), (5120, 50344), (6293, 40960), (6496, 39680), (6944, 37120), (7168, 35960), (7192, 35840), (7424, 34720), (7936, 32480), (8120, 31744), (8192, 31465), (8680, 29696), (8960, 28768), (8990, 28672), (9280, 27776), (9920, 25984), (10240, 25172), (12586, 20480), (12992, 19840), (13888, 18560), (14336, 17980), (14384, 17920), (14848, 17360), (15872, 16240)]