39999806

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{491}}^1$

素因数の和:557

約数の個数: 48

約数和(自身を含む): 78357888

約数和(自身を除く): 38358082

約数列:

[1, 2, 7, 11, 14, 22, 23, 46, 77, 154, 161, 253, 322, 491, 506, 529, 982, 1058, 1771, 3437, 3542, 3703, 5401, 5819, 6874, 7406, 10802, 11293, 11638, 22586, 37807, 40733, 75614, 79051, 81466, 124223, 158102, 248446, 259739, 519478, 869561, 1739122, 1818173, 2857129, 3636346, 5714258, 19999903, 39999806]

約数ペア:

[(1, 39999806), (2, 19999903), (7, 5714258), (11, 3636346), (14, 2857129), (22, 1818173), (23, 1739122), (46, 869561), (77, 519478), (154, 259739), (161, 248446), (253, 158102), (322, 124223), (491, 81466), (506, 79051), (529, 75614), (982, 40733), (1058, 37807), (1771, 22586), (3437, 11638), (3542, 11293), (3703, 10802), (5401, 7406), (5819, 6874)]