71575280

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^2$

素因数の和:108

約数の個数: 180

約数和(自身を含む): 210555720

約数和(自身を除く): 138980440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 31, 35, 38, 40, 49, 56, 62, 70, 76, 80, 95, 98, 112, 124, 133, 140, 152, 155, 190, 196, 217, 245, 248, 266, 280, 304, 310, 380, 392, 434, 490, 496, 532, 560, 589, 620, 665, 760, 784, 868, 931, 961, 980, 1064, 1085, 1178, 1240, 1330, 1519, 1520, 1736, 1862, 1922, 1960, 2128, 2170, 2356, 2480, 2660, 2945, 3038, 3472, 3724, 3844, 3920, 4123, 4340, 4655, 4712, 4805, 5320, 5890, 6076, 6727, 7448, 7595, 7688, 8246, 8680, 9310, 9424, 9610, 10640, 11780, 12152, 13454, 14896, 15190, 15376, 16492, 17360, 18259, 18620, 19220, 20615, 23560, 24304, 26908, 28861, 30380, 32984, 33635, 36518, 37240, 38440, 41230, 47089, 47120, 53816, 57722, 60760, 65968, 67270, 73036, 74480, 76880, 82460, 91295, 94178, 107632, 115444, 121520, 127813, 134540, 144305, 146072, 164920, 182590, 188356, 230888, 235445, 255626, 269080, 288610, 292144, 329840, 365180, 376712, 461776, 470890, 511252, 538160, 577220, 639065, 730360, 753424, 894691, 941780, 1022504, 1154440, 1278130, 1460720, 1789382, 1883560, 2045008, 2308880, 2556260, 3578764, 3767120, 4473455, 5112520, 7157528, 8946910, 10225040, 14315056, 17893820, 35787640, 71575280]

約数ペア:

[(1, 71575280), (2, 35787640), (4, 17893820), (5, 14315056), (7, 10225040), (8, 8946910), (10, 7157528), (14, 5112520), (16, 4473455), (19, 3767120), (20, 3578764), (28, 2556260), (31, 2308880), (35, 2045008), (38, 1883560), (40, 1789382), (49, 1460720), (56, 1278130), (62, 1154440), (70, 1022504), (76, 941780), (80, 894691), (95, 753424), (98, 730360), (112, 639065), (124, 577220), (133, 538160), (140, 511252), (152, 470890), (155, 461776), (190, 376712), (196, 365180), (217, 329840), (245, 292144), (248, 288610), (266, 269080), (280, 255626), (304, 235445), (310, 230888), (380, 188356), (392, 182590), (434, 164920), (490, 146072), (496, 144305), (532, 134540), (560, 127813), (589, 121520), (620, 115444), (665, 107632), (760, 94178), (784, 91295), (868, 82460), (931, 76880), (961, 74480), (980, 73036), (1064, 67270), (1085, 65968), (1178, 60760), (1240, 57722), (1330, 53816), (1519, 47120), (1520, 47089), (1736, 41230), (1862, 38440), (1922, 37240), (1960, 36518), (2128, 33635), (2170, 32984), (2356, 30380), (2480, 28861), (2660, 26908), (2945, 24304), (3038, 23560), (3472, 20615), (3724, 19220), (3844, 18620), (3920, 18259), (4123, 17360), (4340, 16492), (4655, 15376), (4712, 15190), (4805, 14896), (5320, 13454), (5890, 12152), (6076, 11780), (6727, 10640), (7448, 9610), (7595, 9424), (7688, 9310), (8246, 8680)]