221542720

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:301

約数の個数: 168

約数和(自身を含む): 625449600

約数和(自身を除く): 403906880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 71, 80, 98, 112, 140, 142, 160, 196, 199, 224, 245, 280, 284, 320, 355, 392, 398, 448, 490, 497, 560, 568, 710, 784, 796, 980, 994, 995, 1120, 1136, 1393, 1420, 1568, 1592, 1960, 1988, 1990, 2240, 2272, 2485, 2786, 2840, 3136, 3184, 3479, 3920, 3976, 3980, 4544, 4970, 5572, 5680, 6368, 6958, 6965, 7840, 7952, 7960, 9751, 9940, 11144, 11360, 12736, 13916, 13930, 14129, 15680, 15904, 15920, 17395, 19502, 19880, 22288, 22720, 27832, 27860, 28258, 31808, 31840, 34790, 39004, 39760, 44576, 48755, 55664, 55720, 56516, 63680, 69580, 70645, 78008, 79520, 89152, 97510, 98903, 111328, 111440, 113032, 139160, 141290, 156016, 159040, 195020, 197806, 222656, 222880, 226064, 278320, 282580, 312032, 390040, 395612, 445760, 452128, 494515, 556640, 565160, 624064, 692321, 780080, 791224, 904256, 989030, 1113280, 1130320, 1384642, 1560160, 1582448, 1978060, 2260640, 2769284, 3120320, 3164896, 3461605, 3956120, 4521280, 5538568, 6329792, 6923210, 7912240, 11077136, 13846420, 15824480, 22154272, 27692840, 31648960, 44308544, 55385680, 110771360, 221542720]

約数ペア:

[(1, 221542720), (2, 110771360), (4, 55385680), (5, 44308544), (7, 31648960), (8, 27692840), (10, 22154272), (14, 15824480), (16, 13846420), (20, 11077136), (28, 7912240), (32, 6923210), (35, 6329792), (40, 5538568), (49, 4521280), (56, 3956120), (64, 3461605), (70, 3164896), (71, 3120320), (80, 2769284), (98, 2260640), (112, 1978060), (140, 1582448), (142, 1560160), (160, 1384642), (196, 1130320), (199, 1113280), (224, 989030), (245, 904256), (280, 791224), (284, 780080), (320, 692321), (355, 624064), (392, 565160), (398, 556640), (448, 494515), (490, 452128), (497, 445760), (560, 395612), (568, 390040), (710, 312032), (784, 282580), (796, 278320), (980, 226064), (994, 222880), (995, 222656), (1120, 197806), (1136, 195020), (1393, 159040), (1420, 156016), (1568, 141290), (1592, 139160), (1960, 113032), (1988, 111440), (1990, 111328), (2240, 98903), (2272, 97510), (2485, 89152), (2786, 79520), (2840, 78008), (3136, 70645), (3184, 69580), (3479, 63680), (3920, 56516), (3976, 55720), (3980, 55664), (4544, 48755), (4970, 44576), (5572, 39760), (5680, 39004), (6368, 34790), (6958, 31840), (6965, 31808), (7840, 28258), (7952, 27860), (7960, 27832), (9751, 22720), (9940, 22288), (11144, 19880), (11360, 19502), (12736, 17395), (13916, 15920), (13930, 15904), (14129, 15680)]