19828480

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{2213}}^1$

素因数の和:2241

約数の個数: 72

約数和(自身を含む): 54304992

約数和(自身を除く): 34476512

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, 560, 640, 896, 1120, 1280, 1792, 2213, 2240, 4426, 4480, 8852, 8960, 11065, 15491, 17704, 22130, 30982, 35408, 44260, 61964, 70816, 77455, 88520, 123928, 141632, 154910, 177040, 247856, 283264, 309820, 354080, 495712, 566528, 619640, 708160, 991424, 1239280, 1416320, 1982848, 2478560, 2832640, 3965696, 4957120, 9914240, 19828480]

約数ペア:

[(1, 19828480), (2, 9914240), (4, 4957120), (5, 3965696), (7, 2832640), (8, 2478560), (10, 1982848), (14, 1416320), (16, 1239280), (20, 991424), (28, 708160), (32, 619640), (35, 566528), (40, 495712), (56, 354080), (64, 309820), (70, 283264), (80, 247856), (112, 177040), (128, 154910), (140, 141632), (160, 123928), (224, 88520), (256, 77455), (280, 70816), (320, 61964), (448, 44260), (560, 35408), (640, 30982), (896, 22130), (1120, 17704), (1280, 15491), (1792, 11065), (2213, 8960), (2240, 8852), (4426, 4480)]