81488356

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{37}}^2\times {\mathrm{647}}^1$

素因数の和:748

約数の個数: 36

約数和(自身を含む): 153171648

約数和(自身を除く): 71683292

約数列:

[1, 2, 4, 23, 37, 46, 74, 92, 148, 647, 851, 1294, 1369, 1702, 2588, 2738, 3404, 5476, 14881, 23939, 29762, 31487, 47878, 59524, 62974, 95756, 125948, 550597, 885743, 1101194, 1771486, 2202388, 3542972, 20372089, 40744178, 81488356]

約数ペア:

[(1, 81488356), (2, 40744178), (4, 20372089), (23, 3542972), (37, 2202388), (46, 1771486), (74, 1101194), (92, 885743), (148, 550597), (647, 125948), (851, 95756), (1294, 62974), (1369, 59524), (1702, 47878), (2588, 31487), (2738, 29762), (3404, 23939), (5476, 14881)]