20983049920

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{128321}}^1$

素因数の和:128418

約数の個数: 112

約数和(自身を含む): 57886567488

約数和(自身を除く): 36903517568

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 73, 80, 112, 140, 146, 160, 224, 280, 292, 320, 365, 448, 511, 560, 584, 730, 1022, 1120, 1168, 1460, 2044, 2240, 2336, 2555, 2920, 4088, 4672, 5110, 5840, 8176, 10220, 11680, 16352, 20440, 23360, 32704, 40880, 81760, 128321, 163520, 256642, 513284, 641605, 898247, 1026568, 1283210, 1796494, 2053136, 2566420, 3592988, 4106272, 4491235, 5132840, 7185976, 8212544, 8982470, 9367433, 10265680, 14371952, 17964940, 18734866, 20531360, 28743904, 35929880, 37469732, 41062720, 46837165, 57487808, 65572031, 71859760, 74939464, 93674330, 131144062, 143719520, 149878928, 187348660, 262288124, 287439040, 299757856, 327860155, 374697320, 524576248, 599515712, 655720310, 749394640, 1049152496, 1311440620, 1498789280, 2098304992, 2622881240, 2997578560, 4196609984, 5245762480, 10491524960, 20983049920]

約数ペア:

[(1, 20983049920), (2, 10491524960), (4, 5245762480), (5, 4196609984), (7, 2997578560), (8, 2622881240), (10, 2098304992), (14, 1498789280), (16, 1311440620), (20, 1049152496), (28, 749394640), (32, 655720310), (35, 599515712), (40, 524576248), (56, 374697320), (64, 327860155), (70, 299757856), (73, 287439040), (80, 262288124), (112, 187348660), (140, 149878928), (146, 143719520), (160, 131144062), (224, 93674330), (280, 74939464), (292, 71859760), (320, 65572031), (365, 57487808), (448, 46837165), (511, 41062720), (560, 37469732), (584, 35929880), (730, 28743904), (1022, 20531360), (1120, 18734866), (1168, 17964940), (1460, 14371952), (2044, 10265680), (2240, 9367433), (2336, 8982470), (2555, 8212544), (2920, 7185976), (4088, 5132840), (4672, 4491235), (5110, 4106272), (5840, 3592988), (8176, 2566420), (10220, 2053136), (11680, 1796494), (16352, 1283210), (20440, 1026568), (23360, 898247), (32704, 641605), (40880, 513284), (81760, 256642), (128321, 163520)]