205429456

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{210481}}^1$

素因数の和:210550

約数の個数: 20

約数和(自身を含む): 404546404

約数和(自身を除く): 199116948

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 210481, 420962, 841924, 1683848, 3367696, 12839341, 25678682, 51357364, 102714728, 205429456]

約数ペア:

[(1, 205429456), (2, 102714728), (4, 51357364), (8, 25678682), (16, 12839341), (61, 3367696), (122, 1683848), (244, 841924), (488, 420962), (976, 210481)]