720634880

素因数分解:

$2^{10}\times 5^1\times 7^1\times {\mathrm{20107}}^1$

素因数の和:20139

約数の個数: 88

約数和(自身を含む): 1975731648

約数和(自身を除く): 1255096768

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 640, 896, 1024, 1120, 1280, 1792, 2240, 2560, 3584, 4480, 5120, 7168, 8960, 17920, 20107, 35840, 40214, 80428, 100535, 140749, 160856, 201070, 281498, 321712, 402140, 562996, 643424, 703745, 804280, 1125992, 1286848, 1407490, 1608560, 2251984, 2573696, 2814980, 3217120, 4503968, 5147392, 5629960, 6434240, 9007936, 10294784, 11259920, 12868480, 18015872, 20589568, 22519840, 25736960, 36031744, 45039680, 51473920, 72063488, 90079360, 102947840, 144126976, 180158720, 360317440, 720634880]

約数ペア:

[(1, 720634880), (2, 360317440), (4, 180158720), (5, 144126976), (7, 102947840), (8, 90079360), (10, 72063488), (14, 51473920), (16, 45039680), (20, 36031744), (28, 25736960), (32, 22519840), (35, 20589568), (40, 18015872), (56, 12868480), (64, 11259920), (70, 10294784), (80, 9007936), (112, 6434240), (128, 5629960), (140, 5147392), (160, 4503968), (224, 3217120), (256, 2814980), (280, 2573696), (320, 2251984), (448, 1608560), (512, 1407490), (560, 1286848), (640, 1125992), (896, 804280), (1024, 703745), (1120, 643424), (1280, 562996), (1792, 402140), (2240, 321712), (2560, 281498), (3584, 201070), (4480, 160856), (5120, 140749), (7168, 100535), (8960, 80428), (17920, 40214), (20107, 35840)]