205659909

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1237}}^1$

素因数の和:1299

約数の個数: 72

約数和(自身を含む): 385290360

約数和(自身を除く): 179630451

約数列:

[1, 3, 7, 9, 13, 21, 29, 39, 49, 63, 87, 91, 117, 147, 203, 261, 273, 377, 441, 609, 637, 819, 1131, 1237, 1421, 1827, 1911, 2639, 3393, 3711, 4263, 5733, 7917, 8659, 11133, 12789, 16081, 18473, 23751, 25977, 35873, 48243, 55419, 60613, 77931, 107619, 112567, 144729, 166257, 181839, 251111, 322857, 337701, 466349, 545517, 753333, 787969, 1013103, 1399047, 1757777, 2259999, 2363907, 3264443, 4197141, 5273331, 7091721, 9793329, 15819993, 22851101, 29379987, 68553303, 205659909]

約数ペア:

[(1, 205659909), (3, 68553303), (7, 29379987), (9, 22851101), (13, 15819993), (21, 9793329), (29, 7091721), (39, 5273331), (49, 4197141), (63, 3264443), (87, 2363907), (91, 2259999), (117, 1757777), (147, 1399047), (203, 1013103), (261, 787969), (273, 753333), (377, 545517), (441, 466349), (609, 337701), (637, 322857), (819, 251111), (1131, 181839), (1237, 166257), (1421, 144729), (1827, 112567), (1911, 107619), (2639, 77931), (3393, 60613), (3711, 55419), (4263, 48243), (5733, 35873), (7917, 25977), (8659, 23751), (11133, 18473), (12789, 16081)]