161258240

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{881}}^1$

素因数の和:926

約数の個数: 144

約数和(自身を含む): 454307616

約数和(自身を除く): 293049376

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 64, 65, 80, 88, 104, 110, 128, 130, 143, 160, 176, 208, 220, 256, 260, 286, 320, 352, 416, 440, 520, 572, 640, 704, 715, 832, 880, 881, 1040, 1144, 1280, 1408, 1430, 1664, 1760, 1762, 2080, 2288, 2816, 2860, 3328, 3520, 3524, 4160, 4405, 4576, 5720, 7040, 7048, 8320, 8810, 9152, 9691, 11440, 11453, 14080, 14096, 16640, 17620, 18304, 19382, 22880, 22906, 28192, 35240, 36608, 38764, 45760, 45812, 48455, 56384, 57265, 70480, 77528, 91520, 91624, 96910, 112768, 114530, 125983, 140960, 155056, 183040, 183248, 193820, 225536, 229060, 251966, 281920, 310112, 366496, 387640, 458120, 503932, 563840, 620224, 629915, 732992, 775280, 916240, 1007864, 1127680, 1240448, 1259830, 1465984, 1550560, 1832480, 2015728, 2480896, 2519660, 2931968, 3101120, 3664960, 4031456, 5039320, 6202240, 7329920, 8062912, 10078640, 12404480, 14659840, 16125824, 20157280, 32251648, 40314560, 80629120, 161258240]

約数ペア:

[(1, 161258240), (2, 80629120), (4, 40314560), (5, 32251648), (8, 20157280), (10, 16125824), (11, 14659840), (13, 12404480), (16, 10078640), (20, 8062912), (22, 7329920), (26, 6202240), (32, 5039320), (40, 4031456), (44, 3664960), (52, 3101120), (55, 2931968), (64, 2519660), (65, 2480896), (80, 2015728), (88, 1832480), (104, 1550560), (110, 1465984), (128, 1259830), (130, 1240448), (143, 1127680), (160, 1007864), (176, 916240), (208, 775280), (220, 732992), (256, 629915), (260, 620224), (286, 563840), (320, 503932), (352, 458120), (416, 387640), (440, 366496), (520, 310112), (572, 281920), (640, 251966), (704, 229060), (715, 225536), (832, 193820), (880, 183248), (881, 183040), (1040, 155056), (1144, 140960), (1280, 125983), (1408, 114530), (1430, 112768), (1664, 96910), (1760, 91624), (1762, 91520), (2080, 77528), (2288, 70480), (2816, 57265), (2860, 56384), (3328, 48455), (3520, 45812), (3524, 45760), (4160, 38764), (4405, 36608), (4576, 35240), (5720, 28192), (7040, 22906), (7048, 22880), (8320, 19382), (8810, 18304), (9152, 17620), (9691, 16640), (11440, 14096), (11453, 14080)]