28129842

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1$

素因数の和:102

約数の個数: 120

約数和(自身を含む): 73577196

約数和(自身を除く): 45447354

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 27, 37, 38, 39, 54, 57, 74, 78, 81, 111, 114, 117, 162, 171, 222, 234, 247, 333, 342, 351, 361, 481, 494, 513, 666, 702, 703, 722, 741, 962, 999, 1026, 1053, 1083, 1406, 1443, 1482, 1539, 1998, 2106, 2109, 2166, 2223, 2886, 2997, 3078, 3249, 4218, 4329, 4446, 4693, 5994, 6327, 6498, 6669, 8658, 9139, 9386, 9747, 12654, 12987, 13338, 13357, 14079, 18278, 18981, 19494, 20007, 25974, 26714, 27417, 28158, 29241, 37962, 38961, 40014, 40071, 42237, 54834, 56943, 58482, 77922, 80142, 82251, 84474, 113886, 120213, 126711, 164502, 173641, 240426, 246753, 253422, 347282, 360639, 380133, 493506, 520923, 721278, 740259, 760266, 1041846, 1081917, 1480518, 1562769, 2163834, 3125538, 4688307, 9376614, 14064921, 28129842]

約数ペア:

[(1, 28129842), (2, 14064921), (3, 9376614), (6, 4688307), (9, 3125538), (13, 2163834), (18, 1562769), (19, 1480518), (26, 1081917), (27, 1041846), (37, 760266), (38, 740259), (39, 721278), (54, 520923), (57, 493506), (74, 380133), (78, 360639), (81, 347282), (111, 253422), (114, 246753), (117, 240426), (162, 173641), (171, 164502), (222, 126711), (234, 120213), (247, 113886), (333, 84474), (342, 82251), (351, 80142), (361, 77922), (481, 58482), (494, 56943), (513, 54834), (666, 42237), (702, 40071), (703, 40014), (722, 38961), (741, 37962), (962, 29241), (999, 28158), (1026, 27417), (1053, 26714), (1083, 25974), (1406, 20007), (1443, 19494), (1482, 18981), (1539, 18278), (1998, 14079), (2106, 13357), (2109, 13338), (2166, 12987), (2223, 12654), (2886, 9747), (2997, 9386), (3078, 9139), (3249, 8658), (4218, 6669), (4329, 6498), (4446, 6327), (4693, 5994)]