40647238

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{409}}^1$

素因数の和:544

約数の個数: 32

約数和(自身を含む): 67305600

約数和(自身を除く): 26658362

約数列:

[1, 2, 17, 34, 37, 74, 79, 158, 409, 629, 818, 1258, 1343, 2686, 2923, 5846, 6953, 13906, 15133, 30266, 32311, 49691, 64622, 99382, 257261, 514522, 549287, 1098574, 1195507, 2391014, 20323619, 40647238]

約数ペア:

[(1, 40647238), (2, 20323619), (17, 2391014), (34, 1195507), (37, 1098574), (74, 549287), (79, 514522), (158, 257261), (409, 99382), (629, 64622), (818, 49691), (1258, 32311), (1343, 30266), (2686, 15133), (2923, 13906), (5846, 6953)]