21427840

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{4783}}^1$

素因数の和:4809

約数の個数: 64

約数和(自身を含む): 58556160

約数和(自身を除く): 37128320

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, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 4783, 9566, 19132, 23915, 33481, 38264, 47830, 66962, 76528, 95660, 133924, 153056, 167405, 191320, 267848, 306112, 334810, 382640, 535696, 612224, 669620, 765280, 1071392, 1339240, 1530560, 2142784, 2678480, 3061120, 4285568, 5356960, 10713920, 21427840]

約数ペア:

[(1, 21427840), (2, 10713920), (4, 5356960), (5, 4285568), (7, 3061120), (8, 2678480), (10, 2142784), (14, 1530560), (16, 1339240), (20, 1071392), (28, 765280), (32, 669620), (35, 612224), (40, 535696), (56, 382640), (64, 334810), (70, 306112), (80, 267848), (112, 191320), (128, 167405), (140, 153056), (160, 133924), (224, 95660), (280, 76528), (320, 66962), (448, 47830), (560, 38264), (640, 33481), (896, 23915), (1120, 19132), (2240, 9566), (4480, 4783)]