21365440

素因数分解:

$2^6\times 5^1\times {\mathrm{179}}^1\times {\mathrm{373}}^1$

素因数の和:569

約数の個数: 56

約数和(自身を含む): 51297840

約数和(自身を除く): 29932400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 179, 320, 358, 373, 716, 746, 895, 1432, 1492, 1790, 1865, 2864, 2984, 3580, 3730, 5728, 5968, 7160, 7460, 11456, 11936, 14320, 14920, 23872, 28640, 29840, 57280, 59680, 66767, 119360, 133534, 267068, 333835, 534136, 667670, 1068272, 1335340, 2136544, 2670680, 4273088, 5341360, 10682720, 21365440]

約数ペア:

[(1, 21365440), (2, 10682720), (4, 5341360), (5, 4273088), (8, 2670680), (10, 2136544), (16, 1335340), (20, 1068272), (32, 667670), (40, 534136), (64, 333835), (80, 267068), (160, 133534), (179, 119360), (320, 66767), (358, 59680), (373, 57280), (716, 29840), (746, 28640), (895, 23872), (1432, 14920), (1492, 14320), (1790, 11936), (1865, 11456), (2864, 7460), (2984, 7160), (3580, 5968), (3730, 5728)]