20725975440

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{331}}^1\times {\mathrm{3221}}^1$

素因数の和:3580

約数の個数: 240

約数和(自身を含む): 72423239616

約数和(自身を除く): 51697264176

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 243, 270, 324, 331, 360, 405, 432, 486, 540, 648, 662, 720, 810, 972, 993, 1080, 1215, 1296, 1324, 1620, 1655, 1944, 1986, 2160, 2430, 2648, 2979, 3221, 3240, 3310, 3888, 3972, 4860, 4965, 5296, 5958, 6442, 6480, 6620, 7944, 8937, 9663, 9720, 9930, 11916, 12884, 13240, 14895, 15888, 16105, 17874, 19326, 19440, 19860, 23832, 25768, 26480, 26811, 28989, 29790, 32210, 35748, 38652, 39720, 44685, 47664, 48315, 51536, 53622, 57978, 59580, 64420, 71496, 77304, 79440, 80433, 86967, 89370, 96630, 107244, 115956, 119160, 128840, 134055, 142992, 144945, 154608, 160866, 173934, 178740, 193260, 214488, 231912, 238320, 257680, 260901, 268110, 289890, 321732, 347868, 357480, 386520, 402165, 428976, 434835, 463824, 521802, 536220, 579780, 643464, 695736, 714960, 773040, 782703, 804330, 869670, 1043604, 1066151, 1072440, 1159560, 1286928, 1304505, 1391472, 1565406, 1608660, 1739340, 2087208, 2132302, 2144880, 2319120, 2609010, 3130812, 3198453, 3217320, 3478680, 3913515, 4174416, 4264604, 5218020, 5330755, 6261624, 6396906, 6434640, 6957360, 7827030, 8529208, 9595359, 10436040, 10661510, 12523248, 12793812, 15654060, 15992265, 17058416, 19190718, 20872080, 21323020, 25587624, 28786077, 31308120, 31984530, 38381436, 42646040, 47976795, 51175248, 57572154, 62616240, 63969060, 76762872, 85292080, 86358231, 95953590, 115144308, 127938120, 143930385, 153525744, 172716462, 191907180, 230288616, 255876240, 259074693, 287860770, 345432924, 383814360, 431791155, 460577232, 518149386, 575721540, 690865848, 767628720, 863582310, 1036298772, 1151443080, 1295373465, 1381731696, 1727164620, 2072597544, 2302886160, 2590746930, 3454329240, 4145195088, 5181493860, 6908658480, 10362987720, 20725975440]

約数ペア:

[(1, 20725975440), (2, 10362987720), (3, 6908658480), (4, 5181493860), (5, 4145195088), (6, 3454329240), (8, 2590746930), (9, 2302886160), (10, 2072597544), (12, 1727164620), (15, 1381731696), (16, 1295373465), (18, 1151443080), (20, 1036298772), (24, 863582310), (27, 767628720), (30, 690865848), (36, 575721540), (40, 518149386), (45, 460577232), (48, 431791155), (54, 383814360), (60, 345432924), (72, 287860770), (80, 259074693), (81, 255876240), (90, 230288616), (108, 191907180), (120, 172716462), (135, 153525744), (144, 143930385), (162, 127938120), (180, 115144308), (216, 95953590), (240, 86358231), (243, 85292080), (270, 76762872), (324, 63969060), (331, 62616240), (360, 57572154), (405, 51175248), (432, 47976795), (486, 42646040), (540, 38381436), (648, 31984530), (662, 31308120), (720, 28786077), (810, 25587624), (972, 21323020), (993, 20872080), (1080, 19190718), (1215, 17058416), (1296, 15992265), (1324, 15654060), (1620, 12793812), (1655, 12523248), (1944, 10661510), (1986, 10436040), (2160, 9595359), (2430, 8529208), (2648, 7827030), (2979, 6957360), (3221, 6434640), (3240, 6396906), (3310, 6261624), (3888, 5330755), (3972, 5218020), (4860, 4264604), (4965, 4174416), (5296, 3913515), (5958, 3478680), (6442, 3217320), (6480, 3198453), (6620, 3130812), (7944, 2609010), (8937, 2319120), (9663, 2144880), (9720, 2132302), (9930, 2087208), (11916, 1739340), (12884, 1608660), (13240, 1565406), (14895, 1391472), (15888, 1304505), (16105, 1286928), (17874, 1159560), (19326, 1072440), (19440, 1066151), (19860, 1043604), (23832, 869670), (25768, 804330), (26480, 782703), (26811, 773040), (28989, 714960), (29790, 695736), (32210, 643464), (35748, 579780), (38652, 536220), (39720, 521802), (44685, 463824), (47664, 434835), (48315, 428976), (51536, 402165), (53622, 386520), (57978, 357480), (59580, 347868), (64420, 321732), (71496, 289890), (77304, 268110), (79440, 260901), (80433, 257680), (86967, 238320), (89370, 231912), (96630, 214488), (107244, 193260), (115956, 178740), (119160, 173934), (128840, 160866), (134055, 154608), (142992, 144945)]