1215940005

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{439}}^1\times {\mathrm{977}}^1$

素因数の和:1440

約数の個数: 80

約数和(自身を含む): 2499298560

約数和(自身を除く): 1283358555

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 315, 405, 439, 567, 945, 977, 1317, 2195, 2835, 2931, 3073, 3951, 4885, 6585, 6839, 8793, 9219, 11853, 14655, 15365, 19755, 20517, 26379, 27657, 34195, 35559, 43965, 46095, 59265, 61551, 79137, 82971, 102585, 131895, 138285, 177795, 184653, 248913, 307755, 395685, 414855, 428903, 553959, 923265, 1244565, 1286709, 2144515, 2769795, 3002321, 3860127, 6433545, 9006963, 11580381, 15011605, 19300635, 27020889, 34741143, 45034815, 57901905, 81062667, 135104445, 173705715, 243188001, 405313335, 1215940005]

約数ペア:

[(1, 1215940005), (3, 405313335), (5, 243188001), (7, 173705715), (9, 135104445), (15, 81062667), (21, 57901905), (27, 45034815), (35, 34741143), (45, 27020889), (63, 19300635), (81, 15011605), (105, 11580381), (135, 9006963), (189, 6433545), (315, 3860127), (405, 3002321), (439, 2769795), (567, 2144515), (945, 1286709), (977, 1244565), (1317, 923265), (2195, 553959), (2835, 428903), (2931, 414855), (3073, 395685), (3951, 307755), (4885, 248913), (6585, 184653), (6839, 177795), (8793, 138285), (9219, 131895), (11853, 102585), (14655, 82971), (15365, 79137), (19755, 61551), (20517, 59265), (26379, 46095), (27657, 43965), (34195, 35559)]