39988916

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{317}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 79494912

約数和(自身を除く): 39505996

約数列:

[1, 2, 4, 11, 22, 44, 47, 61, 94, 122, 188, 244, 317, 517, 634, 671, 1034, 1268, 1342, 2068, 2684, 2867, 3487, 5734, 6974, 11468, 13948, 14899, 19337, 29798, 31537, 38674, 59596, 63074, 77348, 126148, 163889, 212707, 327778, 425414, 655556, 850828, 908839, 1817678, 3635356, 9997229, 19994458, 39988916]

約数ペア:

[(1, 39988916), (2, 19994458), (4, 9997229), (11, 3635356), (22, 1817678), (44, 908839), (47, 850828), (61, 655556), (94, 425414), (122, 327778), (188, 212707), (244, 163889), (317, 126148), (517, 77348), (634, 63074), (671, 59596), (1034, 38674), (1268, 31537), (1342, 29798), (2068, 19337), (2684, 14899), (2867, 13948), (3487, 11468), (5734, 6974)]