161721560

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{577}}^1$

素因数の和:626

約数の個数: 192

約数和(自身を含む): 498143520

約数和(自身を除く): 336421960

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 49, 52, 55, 56, 65, 70, 77, 88, 91, 98, 104, 110, 130, 140, 143, 154, 182, 196, 220, 245, 260, 280, 286, 308, 364, 385, 392, 440, 455, 490, 520, 539, 572, 577, 616, 637, 715, 728, 770, 910, 980, 1001, 1078, 1144, 1154, 1274, 1430, 1540, 1820, 1960, 2002, 2156, 2308, 2548, 2695, 2860, 2885, 3080, 3185, 3640, 4004, 4039, 4312, 4616, 5005, 5096, 5390, 5720, 5770, 6347, 6370, 7007, 7501, 8008, 8078, 10010, 10780, 11540, 12694, 12740, 14014, 15002, 16156, 20020, 20195, 21560, 23080, 25388, 25480, 28028, 28273, 30004, 31735, 32312, 35035, 37505, 40040, 40390, 44429, 50776, 52507, 56056, 56546, 60008, 63470, 70070, 75010, 80780, 82511, 88858, 105014, 113092, 126940, 140140, 141365, 150020, 161560, 165022, 177716, 210028, 222145, 226184, 253880, 262535, 280280, 282730, 300040, 311003, 330044, 355432, 367549, 412555, 420056, 444290, 525070, 565460, 577577, 622006, 660088, 735098, 825110, 888580, 1050140, 1130920, 1155154, 1244012, 1470196, 1555015, 1650220, 1777160, 1837745, 2100280, 2310308, 2488024, 2887885, 2940392, 3110030, 3300440, 3675490, 4043039, 4620616, 5775770, 6220060, 7350980, 8086078, 11551540, 12440120, 14701960, 16172156, 20215195, 23103080, 32344312, 40430390, 80860780, 161721560]

約数ペア:

[(1, 161721560), (2, 80860780), (4, 40430390), (5, 32344312), (7, 23103080), (8, 20215195), (10, 16172156), (11, 14701960), (13, 12440120), (14, 11551540), (20, 8086078), (22, 7350980), (26, 6220060), (28, 5775770), (35, 4620616), (40, 4043039), (44, 3675490), (49, 3300440), (52, 3110030), (55, 2940392), (56, 2887885), (65, 2488024), (70, 2310308), (77, 2100280), (88, 1837745), (91, 1777160), (98, 1650220), (104, 1555015), (110, 1470196), (130, 1244012), (140, 1155154), (143, 1130920), (154, 1050140), (182, 888580), (196, 825110), (220, 735098), (245, 660088), (260, 622006), (280, 577577), (286, 565460), (308, 525070), (364, 444290), (385, 420056), (392, 412555), (440, 367549), (455, 355432), (490, 330044), (520, 311003), (539, 300040), (572, 282730), (577, 280280), (616, 262535), (637, 253880), (715, 226184), (728, 222145), (770, 210028), (910, 177716), (980, 165022), (1001, 161560), (1078, 150020), (1144, 141365), (1154, 140140), (1274, 126940), (1430, 113092), (1540, 105014), (1820, 88858), (1960, 82511), (2002, 80780), (2156, 75010), (2308, 70070), (2548, 63470), (2695, 60008), (2860, 56546), (2885, 56056), (3080, 52507), (3185, 50776), (3640, 44429), (4004, 40390), (4039, 40040), (4312, 37505), (4616, 35035), (5005, 32312), (5096, 31735), (5390, 30004), (5720, 28273), (5770, 28028), (6347, 25480), (6370, 25388), (7007, 23080), (7501, 21560), (8008, 20195), (8078, 20020), (10010, 16156), (10780, 15002), (11540, 14014), (12694, 12740)]