20174881878

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^2\times {\mathrm{83}}^1\times {\mathrm{16057}}^1$

素因数の和:16206

約数の個数: 72

約数和(自身を含む): 45819832968

約数和(自身を除く): 25644951090

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 83, 87, 166, 174, 249, 261, 498, 522, 747, 841, 1494, 1682, 2407, 2523, 4814, 5046, 7221, 7569, 14442, 15138, 16057, 21663, 32114, 43326, 48171, 69803, 96342, 139606, 144513, 209409, 289026, 418818, 465653, 628227, 931306, 1256454, 1332731, 1396959, 2665462, 2793918, 3998193, 4190877, 7996386, 8381754, 11994579, 13503937, 23989158, 27007874, 38649199, 40511811, 77298398, 81023622, 115947597, 121535433, 231895194, 243070866, 347842791, 695685582, 1120826771, 2241653542, 3362480313, 6724960626, 10087440939, 20174881878]

約数ペア:

[(1, 20174881878), (2, 10087440939), (3, 6724960626), (6, 3362480313), (9, 2241653542), (18, 1120826771), (29, 695685582), (58, 347842791), (83, 243070866), (87, 231895194), (166, 121535433), (174, 115947597), (249, 81023622), (261, 77298398), (498, 40511811), (522, 38649199), (747, 27007874), (841, 23989158), (1494, 13503937), (1682, 11994579), (2407, 8381754), (2523, 7996386), (4814, 4190877), (5046, 3998193), (7221, 2793918), (7569, 2665462), (14442, 1396959), (15138, 1332731), (16057, 1256454), (21663, 931306), (32114, 628227), (43326, 465653), (48171, 418818), (69803, 289026), (96342, 209409), (139606, 144513)]