20002560

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{5209}}^1$

素因数の和:5233

約数の個数: 72

約数和(自身を含む): 63895440

約数和(自身を除く): 43892880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 5209, 10418, 15627, 20836, 26045, 31254, 41672, 52090, 62508, 78135, 83344, 104180, 125016, 156270, 166688, 208360, 250032, 312540, 333376, 416720, 500064, 625080, 666752, 833440, 1000128, 1250160, 1333504, 1666880, 2000256, 2500320, 3333760, 4000512, 5000640, 6667520, 10001280, 20002560]

約数ペア:

[(1, 20002560), (2, 10001280), (3, 6667520), (4, 5000640), (5, 4000512), (6, 3333760), (8, 2500320), (10, 2000256), (12, 1666880), (15, 1333504), (16, 1250160), (20, 1000128), (24, 833440), (30, 666752), (32, 625080), (40, 500064), (48, 416720), (60, 333376), (64, 312540), (80, 250032), (96, 208360), (120, 166688), (128, 156270), (160, 125016), (192, 104180), (240, 83344), (256, 78135), (320, 62508), (384, 52090), (480, 41672), (640, 31254), (768, 26045), (960, 20836), (1280, 15627), (1920, 10418), (3840, 5209)]