221729760

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{21997}}^1$

素因数の和:22025

約数の個数: 144

約数和(自身を含む): 864785376

約数和(自身を除く): 643055616

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2520, 3360, 5040, 10080, 21997, 43994, 65991, 87988, 109985, 131982, 153979, 175976, 197973, 219970, 263964, 307958, 329955, 351952, 395946, 439940, 461937, 527928, 615916, 659910, 703904, 769895, 791892, 879880, 923874, 989865, 1055856, 1231832, 1319820, 1385811, 1539790, 1583784, 1759760, 1847748, 1979730, 2111712, 2309685, 2463664, 2639640, 2771622, 3079580, 3167568, 3519520, 3695496, 3959460, 4619370, 4927328, 5279280, 5543244, 6159160, 6335136, 6929055, 7390992, 7918920, 9238740, 10558560, 11086488, 12318320, 13858110, 14781984, 15837840, 18477480, 22172976, 24636640, 27716220, 31675680, 36954960, 44345952, 55432440, 73909920, 110864880, 221729760]

約数ペア:

[(1, 221729760), (2, 110864880), (3, 73909920), (4, 55432440), (5, 44345952), (6, 36954960), (7, 31675680), (8, 27716220), (9, 24636640), (10, 22172976), (12, 18477480), (14, 15837840), (15, 14781984), (16, 13858110), (18, 12318320), (20, 11086488), (21, 10558560), (24, 9238740), (28, 7918920), (30, 7390992), (32, 6929055), (35, 6335136), (36, 6159160), (40, 5543244), (42, 5279280), (45, 4927328), (48, 4619370), (56, 3959460), (60, 3695496), (63, 3519520), (70, 3167568), (72, 3079580), (80, 2771622), (84, 2639640), (90, 2463664), (96, 2309685), (105, 2111712), (112, 1979730), (120, 1847748), (126, 1759760), (140, 1583784), (144, 1539790), (160, 1385811), (168, 1319820), (180, 1231832), (210, 1055856), (224, 989865), (240, 923874), (252, 879880), (280, 791892), (288, 769895), (315, 703904), (336, 659910), (360, 615916), (420, 527928), (480, 461937), (504, 439940), (560, 395946), (630, 351952), (672, 329955), (720, 307958), (840, 263964), (1008, 219970), (1120, 197973), (1260, 175976), (1440, 153979), (1680, 131982), (2016, 109985), (2520, 87988), (3360, 65991), (5040, 43994), (10080, 21997)]