161505900

素因数分解:

$2^2\times 3^4\times 5^2\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:310

約数の個数: 180

約数和(自身を含む): 531021568

約数和(自身を除く): 369515668

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 81, 90, 100, 108, 127, 135, 150, 157, 162, 180, 225, 254, 270, 300, 314, 324, 381, 405, 450, 471, 508, 540, 628, 635, 675, 762, 785, 810, 900, 942, 1143, 1270, 1350, 1413, 1524, 1570, 1620, 1884, 1905, 2025, 2286, 2355, 2540, 2700, 2826, 3140, 3175, 3429, 3810, 3925, 4050, 4239, 4572, 4710, 5652, 5715, 6350, 6858, 7065, 7620, 7850, 8100, 8478, 9420, 9525, 10287, 11430, 11775, 12700, 12717, 13716, 14130, 15700, 16956, 17145, 19050, 19939, 20574, 21195, 22860, 23550, 25434, 28260, 28575, 34290, 35325, 38100, 39878, 41148, 42390, 47100, 50868, 51435, 57150, 59817, 63585, 68580, 70650, 79756, 84780, 85725, 99695, 102870, 105975, 114300, 119634, 127170, 141300, 171450, 179451, 199390, 205740, 211950, 239268, 254340, 257175, 299085, 317925, 342900, 358902, 398780, 423900, 498475, 514350, 538353, 598170, 635850, 717804, 897255, 996950, 1028700, 1076706, 1196340, 1271700, 1495425, 1615059, 1794510, 1993900, 2153412, 2691765, 2990850, 3230118, 3589020, 4486275, 5383530, 5981700, 6460236, 8075295, 8972550, 10767060, 13458825, 16150590, 17945100, 26917650, 32301180, 40376475, 53835300, 80752950, 161505900]

約数ペア:

[(1, 161505900), (2, 80752950), (3, 53835300), (4, 40376475), (5, 32301180), (6, 26917650), (9, 17945100), (10, 16150590), (12, 13458825), (15, 10767060), (18, 8972550), (20, 8075295), (25, 6460236), (27, 5981700), (30, 5383530), (36, 4486275), (45, 3589020), (50, 3230118), (54, 2990850), (60, 2691765), (75, 2153412), (81, 1993900), (90, 1794510), (100, 1615059), (108, 1495425), (127, 1271700), (135, 1196340), (150, 1076706), (157, 1028700), (162, 996950), (180, 897255), (225, 717804), (254, 635850), (270, 598170), (300, 538353), (314, 514350), (324, 498475), (381, 423900), (405, 398780), (450, 358902), (471, 342900), (508, 317925), (540, 299085), (628, 257175), (635, 254340), (675, 239268), (762, 211950), (785, 205740), (810, 199390), (900, 179451), (942, 171450), (1143, 141300), (1270, 127170), (1350, 119634), (1413, 114300), (1524, 105975), (1570, 102870), (1620, 99695), (1884, 85725), (1905, 84780), (2025, 79756), (2286, 70650), (2355, 68580), (2540, 63585), (2700, 59817), (2826, 57150), (3140, 51435), (3175, 50868), (3429, 47100), (3810, 42390), (3925, 41148), (4050, 39878), (4239, 38100), (4572, 35325), (4710, 34290), (5652, 28575), (5715, 28260), (6350, 25434), (6858, 23550), (7065, 22860), (7620, 21195), (7850, 20574), (8100, 19939), (8478, 19050), (9420, 17145), (9525, 16956), (10287, 15700), (11430, 14130), (11775, 13716), (12700, 12717)]