1388416644

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{18731}}^1$

素因数の和:18841

約数の個数: 72

約数和(自身を含む): 3681961920

約数和(自身を除く): 2293545276

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 71, 87, 116, 142, 174, 213, 261, 284, 348, 426, 522, 639, 852, 1044, 1278, 2059, 2556, 4118, 6177, 8236, 12354, 18531, 18731, 24708, 37062, 37462, 56193, 74124, 74924, 112386, 168579, 224772, 337158, 543199, 674316, 1086398, 1329901, 1629597, 2172796, 2659802, 3259194, 3989703, 4888791, 5319604, 6518388, 7979406, 9777582, 11969109, 15958812, 19555164, 23938218, 38567129, 47876436, 77134258, 115701387, 154268516, 231402774, 347104161, 462805548, 694208322, 1388416644]

約数ペア:

[(1, 1388416644), (2, 694208322), (3, 462805548), (4, 347104161), (6, 231402774), (9, 154268516), (12, 115701387), (18, 77134258), (29, 47876436), (36, 38567129), (58, 23938218), (71, 19555164), (87, 15958812), (116, 11969109), (142, 9777582), (174, 7979406), (213, 6518388), (261, 5319604), (284, 4888791), (348, 3989703), (426, 3259194), (522, 2659802), (639, 2172796), (852, 1629597), (1044, 1329901), (1278, 1086398), (2059, 674316), (2556, 543199), (4118, 337158), (6177, 224772), (8236, 168579), (12354, 112386), (18531, 74924), (18731, 74124), (24708, 56193), (37062, 37462)]