1781918320

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{479}}^1$

素因数の和:592

約数の個数: 240

約数和(自身を含む): 5272162560

約数和(自身を除く): 3490244240

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 73, 80, 91, 98, 104, 112, 130, 140, 146, 182, 196, 208, 245, 260, 280, 292, 364, 365, 392, 455, 479, 490, 511, 520, 560, 584, 637, 728, 730, 784, 910, 949, 958, 980, 1022, 1040, 1168, 1274, 1456, 1460, 1820, 1898, 1916, 1960, 2044, 2395, 2548, 2555, 2920, 3185, 3353, 3577, 3640, 3796, 3832, 3920, 4088, 4745, 4790, 5096, 5110, 5840, 6227, 6370, 6643, 6706, 7154, 7280, 7592, 7664, 8176, 9490, 9580, 10192, 10220, 12454, 12740, 13286, 13412, 14308, 15184, 16765, 17885, 18980, 19160, 20440, 23471, 24908, 25480, 26572, 26824, 28616, 31135, 33215, 33530, 34967, 35770, 37960, 38320, 40880, 43589, 46501, 46942, 49816, 50960, 53144, 53648, 57232, 62270, 66430, 67060, 69934, 71540, 75920, 87178, 93002, 93884, 99632, 106288, 117355, 124540, 132860, 134120, 139868, 143080, 174356, 174835, 186004, 187768, 217945, 232505, 234710, 244769, 249080, 265720, 268240, 279736, 286160, 305123, 348712, 349670, 372008, 375536, 435890, 454571, 465010, 469420, 489538, 498160, 531440, 559472, 610246, 697424, 699340, 744016, 871780, 909142, 930020, 938840, 979076, 1220492, 1223845, 1398680, 1525615, 1713383, 1743560, 1818284, 1860040, 1877680, 1958152, 2272855, 2440984, 2447690, 2797360, 3051230, 3181997, 3426766, 3487120, 3636568, 3720080, 3916304, 4545710, 4881968, 4895380, 6102460, 6363994, 6853532, 7273136, 8566915, 9091420, 9790760, 12204920, 12727988, 13707064, 15909985, 17133830, 18182840, 19581520, 22273979, 24409840, 25455976, 27414128, 31819970, 34267660, 36365680, 44547958, 50911952, 63639940, 68535320, 89095916, 111369895, 127279880, 137070640, 178191832, 222739790, 254559760, 356383664, 445479580, 890959160, 1781918320]

約数ペア:

[(1, 1781918320), (2, 890959160), (4, 445479580), (5, 356383664), (7, 254559760), (8, 222739790), (10, 178191832), (13, 137070640), (14, 127279880), (16, 111369895), (20, 89095916), (26, 68535320), (28, 63639940), (35, 50911952), (40, 44547958), (49, 36365680), (52, 34267660), (56, 31819970), (65, 27414128), (70, 25455976), (73, 24409840), (80, 22273979), (91, 19581520), (98, 18182840), (104, 17133830), (112, 15909985), (130, 13707064), (140, 12727988), (146, 12204920), (182, 9790760), (196, 9091420), (208, 8566915), (245, 7273136), (260, 6853532), (280, 6363994), (292, 6102460), (364, 4895380), (365, 4881968), (392, 4545710), (455, 3916304), (479, 3720080), (490, 3636568), (511, 3487120), (520, 3426766), (560, 3181997), (584, 3051230), (637, 2797360), (728, 2447690), (730, 2440984), (784, 2272855), (910, 1958152), (949, 1877680), (958, 1860040), (980, 1818284), (1022, 1743560), (1040, 1713383), (1168, 1525615), (1274, 1398680), (1456, 1223845), (1460, 1220492), (1820, 979076), (1898, 938840), (1916, 930020), (1960, 909142), (2044, 871780), (2395, 744016), (2548, 699340), (2555, 697424), (2920, 610246), (3185, 559472), (3353, 531440), (3577, 498160), (3640, 489538), (3796, 469420), (3832, 465010), (3920, 454571), (4088, 435890), (4745, 375536), (4790, 372008), (5096, 349670), (5110, 348712), (5840, 305123), (6227, 286160), (6370, 279736), (6643, 268240), (6706, 265720), (7154, 249080), (7280, 244769), (7592, 234710), (7664, 232505), (8176, 217945), (9490, 187768), (9580, 186004), (10192, 174835), (10220, 174356), (12454, 143080), (12740, 139868), (13286, 134120), (13412, 132860), (14308, 124540), (15184, 117355), (16765, 106288), (17885, 99632), (18980, 93884), (19160, 93002), (20440, 87178), (23471, 75920), (24908, 71540), (25480, 69934), (26572, 67060), (26824, 66430), (28616, 62270), (31135, 57232), (33215, 53648), (33530, 53144), (34967, 50960), (35770, 49816), (37960, 46942), (38320, 46501), (40880, 43589)]