81639714

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{241}}^1$

素因数の和:403

約数の個数: 64

約数和(自身を含む): 182464128

約数和(自身を除く): 100824414

約数列:

[1, 2, 3, 6, 13, 26, 39, 43, 78, 86, 101, 129, 202, 241, 258, 303, 482, 559, 606, 723, 1118, 1313, 1446, 1677, 2626, 3133, 3354, 3939, 4343, 6266, 7878, 8686, 9399, 10363, 13029, 18798, 20726, 24341, 26058, 31089, 48682, 56459, 62178, 73023, 112918, 134719, 146046, 169377, 269438, 316433, 338754, 404157, 632866, 808314, 949299, 1046663, 1898598, 2093326, 3139989, 6279978, 13606619, 27213238, 40819857, 81639714]

約数ペア:

[(1, 81639714), (2, 40819857), (3, 27213238), (6, 13606619), (13, 6279978), (26, 3139989), (39, 2093326), (43, 1898598), (78, 1046663), (86, 949299), (101, 808314), (129, 632866), (202, 404157), (241, 338754), (258, 316433), (303, 269438), (482, 169377), (559, 146046), (606, 134719), (723, 112918), (1118, 73023), (1313, 62178), (1446, 56459), (1677, 48682), (2626, 31089), (3133, 26058), (3354, 24341), (3939, 20726), (4343, 18798), (6266, 13029), (7878, 10363), (8686, 9399)]