1636607840

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{199}}^1\times {\mathrm{1049}}^1$

素因数の和:1277

約数の個数: 144

約数和(自身を含む): 4524660000

約数和(自身を除く): 2888052160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 199, 224, 245, 280, 392, 398, 490, 560, 784, 796, 980, 995, 1049, 1120, 1393, 1568, 1592, 1960, 1990, 2098, 2786, 3184, 3920, 3980, 4196, 5245, 5572, 6368, 6965, 7343, 7840, 7960, 8392, 9751, 10490, 11144, 13930, 14686, 15920, 16784, 19502, 20980, 22288, 27860, 29372, 31840, 33568, 36715, 39004, 41960, 44576, 48755, 51401, 55720, 58744, 73430, 78008, 83920, 97510, 102802, 111440, 117488, 146860, 156016, 167840, 195020, 205604, 208751, 222880, 234976, 257005, 293720, 312032, 390040, 411208, 417502, 514010, 587440, 780080, 822416, 835004, 1028020, 1043755, 1174880, 1461257, 1560160, 1644832, 1670008, 2056040, 2087510, 2922514, 3340016, 4112080, 4175020, 5845028, 6680032, 7306285, 8224160, 8350040, 10228799, 11690056, 14612570, 16700080, 20457598, 23380112, 29225140, 33400160, 40915196, 46760224, 51143995, 58450280, 81830392, 102287990, 116900560, 163660784, 204575980, 233801120, 327321568, 409151960, 818303920, 1636607840]

約数ペア:

[(1, 1636607840), (2, 818303920), (4, 409151960), (5, 327321568), (7, 233801120), (8, 204575980), (10, 163660784), (14, 116900560), (16, 102287990), (20, 81830392), (28, 58450280), (32, 51143995), (35, 46760224), (40, 40915196), (49, 33400160), (56, 29225140), (70, 23380112), (80, 20457598), (98, 16700080), (112, 14612570), (140, 11690056), (160, 10228799), (196, 8350040), (199, 8224160), (224, 7306285), (245, 6680032), (280, 5845028), (392, 4175020), (398, 4112080), (490, 3340016), (560, 2922514), (784, 2087510), (796, 2056040), (980, 1670008), (995, 1644832), (1049, 1560160), (1120, 1461257), (1393, 1174880), (1568, 1043755), (1592, 1028020), (1960, 835004), (1990, 822416), (2098, 780080), (2786, 587440), (3184, 514010), (3920, 417502), (3980, 411208), (4196, 390040), (5245, 312032), (5572, 293720), (6368, 257005), (6965, 234976), (7343, 222880), (7840, 208751), (7960, 205604), (8392, 195020), (9751, 167840), (10490, 156016), (11144, 146860), (13930, 117488), (14686, 111440), (15920, 102802), (16784, 97510), (19502, 83920), (20980, 78008), (22288, 73430), (27860, 58744), (29372, 55720), (31840, 51401), (33568, 48755), (36715, 44576), (39004, 41960)]