20557792

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{179}}^1$

素因数の和:323

約数の個数: 48

約数和(自身を含む): 42230160

約数和(自身を除く): 21672368

約数列:

[1, 2, 4, 8, 16, 32, 37, 74, 97, 148, 179, 194, 296, 358, 388, 592, 716, 776, 1184, 1432, 1552, 2864, 3104, 3589, 5728, 6623, 7178, 13246, 14356, 17363, 26492, 28712, 34726, 52984, 57424, 69452, 105968, 114848, 138904, 211936, 277808, 555616, 642431, 1284862, 2569724, 5139448, 10278896, 20557792]

約数ペア:

[(1, 20557792), (2, 10278896), (4, 5139448), (8, 2569724), (16, 1284862), (32, 642431), (37, 555616), (74, 277808), (97, 211936), (148, 138904), (179, 114848), (194, 105968), (296, 69452), (358, 57424), (388, 52984), (592, 34726), (716, 28712), (776, 26492), (1184, 17363), (1432, 14356), (1552, 13246), (2864, 7178), (3104, 6623), (3589, 5728)]