638406720

素因数分解:

$2^6\times 3^2\times 5^1\times 7^1\times {\mathrm{31667}}^1$

素因数の和:31697

約数の個数: 168

約数和(自身を含む): 2509625664

約数和(自身を除く): 1871218944

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, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 420, 448, 480, 504, 560, 576, 630, 672, 720, 840, 960, 1008, 1120, 1260, 1344, 1440, 1680, 2016, 2240, 2520, 2880, 3360, 4032, 5040, 6720, 10080, 20160, 31667, 63334, 95001, 126668, 158335, 190002, 221669, 253336, 285003, 316670, 380004, 443338, 475005, 506672, 570006, 633340, 665007, 760008, 886676, 950010, 1013344, 1108345, 1140012, 1266680, 1330014, 1425015, 1520016, 1773352, 1900020, 1995021, 2026688, 2216690, 2280024, 2533360, 2660028, 2850030, 3040032, 3325035, 3546704, 3800040, 3990042, 4433380, 4560048, 5066720, 5320056, 5700060, 6080064, 6650070, 7093408, 7600080, 7980084, 8866760, 9120096, 9975105, 10133440, 10640112, 11400120, 13300140, 14186816, 15200160, 15960168, 17733520, 18240192, 19950210, 21280224, 22800240, 26600280, 30400320, 31920336, 35467040, 39900420, 42560448, 45600480, 53200560, 63840672, 70934080, 79800840, 91200960, 106401120, 127681344, 159601680, 212802240, 319203360, 638406720]

約数ペア:

[(1, 638406720), (2, 319203360), (3, 212802240), (4, 159601680), (5, 127681344), (6, 106401120), (7, 91200960), (8, 79800840), (9, 70934080), (10, 63840672), (12, 53200560), (14, 45600480), (15, 42560448), (16, 39900420), (18, 35467040), (20, 31920336), (21, 30400320), (24, 26600280), (28, 22800240), (30, 21280224), (32, 19950210), (35, 18240192), (36, 17733520), (40, 15960168), (42, 15200160), (45, 14186816), (48, 13300140), (56, 11400120), (60, 10640112), (63, 10133440), (64, 9975105), (70, 9120096), (72, 8866760), (80, 7980084), (84, 7600080), (90, 7093408), (96, 6650070), (105, 6080064), (112, 5700060), (120, 5320056), (126, 5066720), (140, 4560048), (144, 4433380), (160, 3990042), (168, 3800040), (180, 3546704), (192, 3325035), (210, 3040032), (224, 2850030), (240, 2660028), (252, 2533360), (280, 2280024), (288, 2216690), (315, 2026688), (320, 1995021), (336, 1900020), (360, 1773352), (420, 1520016), (448, 1425015), (480, 1330014), (504, 1266680), (560, 1140012), (576, 1108345), (630, 1013344), (672, 950010), (720, 886676), (840, 760008), (960, 665007), (1008, 633340), (1120, 570006), (1260, 506672), (1344, 475005), (1440, 443338), (1680, 380004), (2016, 316670), (2240, 285003), (2520, 253336), (2880, 221669), (3360, 190002), (4032, 158335), (5040, 126668), (6720, 95001), (10080, 63334), (20160, 31667)]