81970588

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^2\times {\mathrm{59}}^2$

素因数の和:187

約数の個数: 54

約数和(自身を含む): 172715816

約数和(自身を除く): 90745228

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 59, 116, 118, 203, 236, 406, 413, 812, 826, 841, 1652, 1682, 1711, 3364, 3422, 3481, 5887, 6844, 6962, 11774, 11977, 13924, 23548, 23954, 24367, 47908, 48734, 49619, 97468, 99238, 100949, 198476, 201898, 347333, 403796, 694666, 706643, 1389332, 1413286, 2826572, 2927521, 5855042, 11710084, 20492647, 40985294, 81970588]

約数ペア:

[(1, 81970588), (2, 40985294), (4, 20492647), (7, 11710084), (14, 5855042), (28, 2927521), (29, 2826572), (58, 1413286), (59, 1389332), (116, 706643), (118, 694666), (203, 403796), (236, 347333), (406, 201898), (413, 198476), (812, 100949), (826, 99238), (841, 97468), (1652, 49619), (1682, 48734), (1711, 47908), (3364, 24367), (3422, 23954), (3481, 23548), (5887, 13924), (6844, 11977), (6962, 11774)]