68539905

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:152

約数の個数: 128

約数和(自身を含む): 149990400

約数和(自身を除く): 81450495

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 29, 35, 41, 45, 61, 63, 87, 105, 123, 135, 145, 183, 189, 203, 205, 261, 287, 305, 315, 369, 427, 435, 549, 609, 615, 783, 861, 915, 945, 1015, 1107, 1189, 1281, 1305, 1435, 1647, 1769, 1827, 1845, 2135, 2501, 2583, 2745, 3045, 3567, 3843, 3915, 4305, 5307, 5481, 5535, 5945, 6405, 7503, 7749, 8235, 8323, 8845, 9135, 10701, 11529, 12383, 12505, 12915, 15921, 17507, 17835, 19215, 22509, 24969, 26535, 27405, 32103, 37149, 37515, 38745, 41615, 47763, 52521, 53505, 57645, 61915, 67527, 72529, 74907, 79605, 87535, 111447, 112545, 124845, 157563, 160515, 185745, 217587, 224721, 238815, 262605, 334341, 337635, 362645, 374535, 472689, 507703, 557235, 652761, 787815, 1087935, 1123605, 1523109, 1671705, 1958283, 2363445, 2538515, 3263805, 4569327, 7615545, 9791415, 13707981, 22846635, 68539905]

約数ペア:

[(1, 68539905), (3, 22846635), (5, 13707981), (7, 9791415), (9, 7615545), (15, 4569327), (21, 3263805), (27, 2538515), (29, 2363445), (35, 1958283), (41, 1671705), (45, 1523109), (61, 1123605), (63, 1087935), (87, 787815), (105, 652761), (123, 557235), (135, 507703), (145, 472689), (183, 374535), (189, 362645), (203, 337635), (205, 334341), (261, 262605), (287, 238815), (305, 224721), (315, 217587), (369, 185745), (427, 160515), (435, 157563), (549, 124845), (609, 112545), (615, 111447), (783, 87535), (861, 79605), (915, 74907), (945, 72529), (1015, 67527), (1107, 61915), (1189, 57645), (1281, 53505), (1305, 52521), (1435, 47763), (1647, 41615), (1769, 38745), (1827, 37515), (1845, 37149), (2135, 32103), (2501, 27405), (2583, 26535), (2745, 24969), (3045, 22509), (3567, 19215), (3843, 17835), (3915, 17507), (4305, 15921), (5307, 12915), (5481, 12505), (5535, 12383), (5945, 11529), (6405, 10701), (7503, 9135), (7749, 8845), (8235, 8323)]