201021520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2699}}^1$

素因数の和:2745

約数の個数: 120

約数和(自身を含む): 572508000

約数和(自身を除く): 371486480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 80, 95, 98, 112, 133, 140, 152, 190, 196, 245, 266, 280, 304, 380, 392, 490, 532, 560, 665, 760, 784, 931, 980, 1064, 1330, 1520, 1862, 1960, 2128, 2660, 2699, 3724, 3920, 4655, 5320, 5398, 7448, 9310, 10640, 10796, 13495, 14896, 18620, 18893, 21592, 26990, 37240, 37786, 43184, 51281, 53980, 74480, 75572, 94465, 102562, 107960, 132251, 151144, 188930, 205124, 215920, 256405, 264502, 302288, 358967, 377860, 410248, 512810, 529004, 661255, 717934, 755720, 820496, 1025620, 1058008, 1322510, 1435868, 1511440, 1794835, 2051240, 2116016, 2512769, 2645020, 2871736, 3589670, 4102480, 5025538, 5290040, 5743472, 7179340, 10051076, 10580080, 12563845, 14358680, 20102152, 25127690, 28717360, 40204304, 50255380, 100510760, 201021520]

約数ペア:

[(1, 201021520), (2, 100510760), (4, 50255380), (5, 40204304), (7, 28717360), (8, 25127690), (10, 20102152), (14, 14358680), (16, 12563845), (19, 10580080), (20, 10051076), (28, 7179340), (35, 5743472), (38, 5290040), (40, 5025538), (49, 4102480), (56, 3589670), (70, 2871736), (76, 2645020), (80, 2512769), (95, 2116016), (98, 2051240), (112, 1794835), (133, 1511440), (140, 1435868), (152, 1322510), (190, 1058008), (196, 1025620), (245, 820496), (266, 755720), (280, 717934), (304, 661255), (380, 529004), (392, 512810), (490, 410248), (532, 377860), (560, 358967), (665, 302288), (760, 264502), (784, 256405), (931, 215920), (980, 205124), (1064, 188930), (1330, 151144), (1520, 132251), (1862, 107960), (1960, 102562), (2128, 94465), (2660, 75572), (2699, 74480), (3724, 53980), (3920, 51281), (4655, 43184), (5320, 37786), (5398, 37240), (7448, 26990), (9310, 21592), (10640, 18893), (10796, 18620), (13495, 14896)]