71278317

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:155

約数の個数: 72

約数和(自身を含む): 122205720

約数和(自身を除く): 50927403

約数列:

[1, 3, 9, 11, 29, 33, 37, 61, 87, 99, 111, 121, 183, 261, 319, 333, 363, 407, 549, 671, 957, 1073, 1089, 1221, 1769, 2013, 2257, 2871, 3219, 3509, 3663, 4477, 5307, 6039, 6771, 7381, 9657, 10527, 11803, 13431, 15921, 19459, 20313, 22143, 24827, 31581, 35409, 40293, 58377, 65453, 66429, 74481, 106227, 129833, 175131, 196359, 214049, 223443, 273097, 389499, 589077, 642147, 719983, 819291, 1168497, 1926441, 2159949, 2457873, 6479847, 7919813, 23759439, 71278317]

約数ペア:

[(1, 71278317), (3, 23759439), (9, 7919813), (11, 6479847), (29, 2457873), (33, 2159949), (37, 1926441), (61, 1168497), (87, 819291), (99, 719983), (111, 642147), (121, 589077), (183, 389499), (261, 273097), (319, 223443), (333, 214049), (363, 196359), (407, 175131), (549, 129833), (671, 106227), (957, 74481), (1073, 66429), (1089, 65453), (1221, 58377), (1769, 40293), (2013, 35409), (2257, 31581), (2871, 24827), (3219, 22143), (3509, 20313), (3663, 19459), (4477, 15921), (5307, 13431), (6039, 11803), (6771, 10527), (7381, 9657)]