20448217839420

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{45821}}^1$

素因数の和:45960

約数の個数: 960

約数和(自身を含む): 80478974822400

約数和(自身を除く): 60030756982980

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 27, 28, 29, 30, 35, 36, 42, 45, 46, 54, 58, 59, 60, 63, 69, 70, 81, 84, 87, 90, 92, 105, 108, 115, 116, 118, 126, 135, 138, 140, 145, 161, 162, 174, 177, 180, 189, 203, 207, 210, 230, 236, 252, 261, 270, 276, 290, 295, 315, 322, 324, 345, 348, 354, 378, 405, 406, 413, 414, 420, 435, 460, 483, 522, 531, 540, 567, 580, 590, 609, 621, 630, 644, 667, 690, 708, 756, 783, 805, 810, 812, 826, 828, 870, 885, 945, 966, 1015, 1035, 1044, 1062, 1134, 1180, 1218, 1239, 1242, 1260, 1305, 1334, 1357, 1380, 1449, 1566, 1593, 1610, 1620, 1652, 1711, 1740, 1770, 1827, 1863, 1890, 1932, 2001, 2030, 2065, 2070, 2124, 2268, 2349, 2415, 2436, 2478, 2484, 2610, 2655, 2668, 2714, 2835, 2898, 3045, 3105, 3132, 3186, 3220, 3335, 3422, 3540, 3654, 3717, 3726, 3780, 3915, 4002, 4060, 4071, 4130, 4140, 4347, 4669, 4698, 4779, 4830, 4956, 5133, 5220, 5310, 5428, 5481, 5670, 5796, 6003, 6090, 6195, 6210, 6372, 6670, 6785, 6844, 7245, 7308, 7434, 7452, 7830, 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約数ペア:

[(1, 20448217839420), (2, 10224108919710), (3, 6816072613140), (4, 5112054459855), (5, 4089643567884), (6, 3408036306570), (7, 2921173977060), (9, 2272024204380), (10, 2044821783942), (12, 1704018153285), (14, 1460586988530), (15, 1363214522628), (18, 1136012102190), (20, 1022410891971), (21, 973724659020), (23, 889052949540), (27, 757341401460), (28, 730293494265), (29, 705110959980), (30, 681607261314), (35, 584234795412), (36, 568006051095), (42, 486862329510), (45, 454404840876), (46, 444526474770), (54, 378670700730), (58, 352555479990), (59, 346579963380), (60, 340803630657), (63, 324574886340), (69, 296350983180), (70, 292117397706), (81, 252447133820), (84, 243431164755), (87, 235036986660), (90, 227202420438), (92, 222263237385), (105, 194744931804), (108, 189335350365), (115, 177810589908), (116, 176277739995), (118, 173289981690), (126, 162287443170), (135, 151468280292), (138, 148175491590), (140, 146058698853), (145, 141022191996), (161, 127007564220), (162, 126223566910), 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