1666321215

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1\times {\mathrm{1229}}^1$

素因数の和:1676

約数の個数: 64

約数和(自身を含む): 3050006400

約数和(自身を除く): 1383685185

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 409, 663, 1105, 1227, 1229, 2045, 3315, 3687, 5317, 6135, 6145, 6953, 15951, 15977, 18435, 20859, 20893, 26585, 34765, 47931, 62679, 79755, 79885, 90389, 104295, 104465, 239655, 271167, 271609, 313395, 451945, 502661, 814827, 1355835, 1358045, 1507983, 2513305, 4074135, 6534593, 7539915, 8545237, 19603779, 25635711, 32672965, 42726185, 98018895, 111088081, 128178555, 333264243, 555440405, 1666321215]

約数ペア:

[(1, 1666321215), (3, 555440405), (5, 333264243), (13, 128178555), (15, 111088081), (17, 98018895), (39, 42726185), (51, 32672965), (65, 25635711), (85, 19603779), (195, 8545237), (221, 7539915), (255, 6534593), (409, 4074135), (663, 2513305), (1105, 1507983), (1227, 1358045), (1229, 1355835), (2045, 814827), (3315, 502661), (3687, 451945), (5317, 313395), (6135, 271609), (6145, 271167), (6953, 239655), (15951, 104465), (15977, 104295), (18435, 90389), (20859, 79885), (20893, 79755), (26585, 62679), (34765, 47931)]