251729920

素因数分解:

$2^{11}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:132

約数の個数: 192

約数和(自身を含む): 682456320

約数和(自身を除く): 430726400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 61, 62, 64, 65, 80, 104, 122, 124, 128, 130, 155, 160, 208, 244, 248, 256, 260, 305, 310, 320, 403, 416, 488, 496, 512, 520, 610, 620, 640, 793, 806, 832, 976, 992, 1024, 1040, 1220, 1240, 1280, 1586, 1612, 1664, 1891, 1952, 1984, 2015, 2048, 2080, 2440, 2480, 2560, 3172, 3224, 3328, 3782, 3904, 3965, 3968, 4030, 4160, 4880, 4960, 5120, 6344, 6448, 6656, 7564, 7808, 7930, 7936, 8060, 8320, 9455, 9760, 9920, 10240, 12688, 12896, 13312, 15128, 15616, 15860, 15872, 16120, 16640, 18910, 19520, 19840, 24583, 25376, 25792, 26624, 30256, 31232, 31720, 31744, 32240, 33280, 37820, 39040, 39680, 49166, 50752, 51584, 60512, 62464, 63440, 63488, 64480, 66560, 75640, 78080, 79360, 98332, 101504, 103168, 121024, 122915, 124928, 126880, 128960, 133120, 151280, 156160, 158720, 196664, 203008, 206336, 242048, 245830, 253760, 257920, 302560, 312320, 317440, 393328, 406016, 412672, 484096, 491660, 507520, 515840, 605120, 624640, 786656, 812032, 825344, 968192, 983320, 1015040, 1031680, 1210240, 1573312, 1624064, 1936384, 1966640, 2030080, 2063360, 2420480, 3146624, 3872768, 3933280, 4060160, 4126720, 4840960, 6293248, 7866560, 8120320, 9681920, 12586496, 15733120, 19363840, 25172992, 31466240, 50345984, 62932480, 125864960, 251729920]

約数ペア:

[(1, 251729920), (2, 125864960), (4, 62932480), (5, 50345984), (8, 31466240), (10, 25172992), (13, 19363840), (16, 15733120), (20, 12586496), (26, 9681920), (31, 8120320), (32, 7866560), (40, 6293248), (52, 4840960), (61, 4126720), (62, 4060160), (64, 3933280), (65, 3872768), (80, 3146624), (104, 2420480), (122, 2063360), (124, 2030080), (128, 1966640), (130, 1936384), (155, 1624064), (160, 1573312), (208, 1210240), (244, 1031680), (248, 1015040), (256, 983320), (260, 968192), (305, 825344), (310, 812032), (320, 786656), (403, 624640), (416, 605120), (488, 515840), (496, 507520), (512, 491660), (520, 484096), (610, 412672), (620, 406016), (640, 393328), (793, 317440), (806, 312320), (832, 302560), (976, 257920), (992, 253760), (1024, 245830), (1040, 242048), (1220, 206336), (1240, 203008), (1280, 196664), (1586, 158720), (1612, 156160), (1664, 151280), (1891, 133120), (1952, 128960), (1984, 126880), (2015, 124928), (2048, 122915), (2080, 121024), (2440, 103168), (2480, 101504), (2560, 98332), (3172, 79360), (3224, 78080), (3328, 75640), (3782, 66560), (3904, 64480), (3965, 63488), (3968, 63440), (4030, 62464), (4160, 60512), (4880, 51584), (4960, 50752), (5120, 49166), (6344, 39680), (6448, 39040), (6656, 37820), (7564, 33280), (7808, 32240), (7930, 31744), (7936, 31720), (8060, 31232), (8320, 30256), (9455, 26624), (9760, 25792), (9920, 25376), (10240, 24583), (12688, 19840), (12896, 19520), (13312, 18910), (15128, 16640), (15616, 16120), (15860, 15872)]