161919520

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1087}}^1$

素因数の和:1135

約数の個数: 144

約数和(自身を含む): 468840960

約数和(自身を除く): 306921440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 70, 76, 80, 95, 98, 112, 133, 140, 152, 160, 190, 196, 224, 245, 266, 280, 304, 380, 392, 490, 532, 560, 608, 665, 760, 784, 931, 980, 1064, 1087, 1120, 1330, 1520, 1568, 1862, 1960, 2128, 2174, 2660, 3040, 3724, 3920, 4256, 4348, 4655, 5320, 5435, 7448, 7609, 7840, 8696, 9310, 10640, 10870, 14896, 15218, 17392, 18620, 20653, 21280, 21740, 29792, 30436, 34784, 37240, 38045, 41306, 43480, 53263, 60872, 74480, 76090, 82612, 86960, 103265, 106526, 121744, 144571, 148960, 152180, 165224, 173920, 206530, 213052, 243488, 266315, 289142, 304360, 330448, 413060, 426104, 532630, 578284, 608720, 660896, 722855, 826120, 852208, 1011997, 1065260, 1156568, 1217440, 1445710, 1652240, 1704416, 2023994, 2130520, 2313136, 2891420, 3304480, 4047988, 4261040, 4626272, 5059985, 5782840, 8095976, 8522080, 10119970, 11565680, 16191952, 20239940, 23131360, 32383904, 40479880, 80959760, 161919520]

約数ペア:

[(1, 161919520), (2, 80959760), (4, 40479880), (5, 32383904), (7, 23131360), (8, 20239940), (10, 16191952), (14, 11565680), (16, 10119970), (19, 8522080), (20, 8095976), (28, 5782840), (32, 5059985), (35, 4626272), (38, 4261040), (40, 4047988), (49, 3304480), (56, 2891420), (70, 2313136), (76, 2130520), (80, 2023994), (95, 1704416), (98, 1652240), (112, 1445710), (133, 1217440), (140, 1156568), (152, 1065260), (160, 1011997), (190, 852208), (196, 826120), (224, 722855), (245, 660896), (266, 608720), (280, 578284), (304, 532630), (380, 426104), (392, 413060), (490, 330448), (532, 304360), (560, 289142), (608, 266315), (665, 243488), (760, 213052), (784, 206530), (931, 173920), (980, 165224), (1064, 152180), (1087, 148960), (1120, 144571), (1330, 121744), (1520, 106526), (1568, 103265), (1862, 86960), (1960, 82612), (2128, 76090), (2174, 74480), (2660, 60872), (3040, 53263), (3724, 43480), (3920, 41306), (4256, 38045), (4348, 37240), (4655, 34784), (5320, 30436), (5435, 29792), (7448, 21740), (7609, 21280), (7840, 20653), (8696, 18620), (9310, 17392), (10640, 15218), (10870, 14896)]