20218463745

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{617}}^1\times {\mathrm{1061}}^1$

素因数の和:1786

約数の個数: 64

約数和(自身を含む): 34023421440

約数和(自身を除く): 13804957695

約数列:

[1, 3, 5, 15, 29, 71, 87, 145, 213, 355, 435, 617, 1061, 1065, 1851, 2059, 3085, 3183, 5305, 6177, 9255, 10295, 15915, 17893, 30769, 30885, 43807, 53679, 75331, 89465, 92307, 131421, 153845, 219035, 225993, 268395, 376655, 461535, 654637, 657105, 1129965, 1270403, 1963911, 2184599, 3273185, 3811209, 6352015, 6553797, 9819555, 10922995, 18984473, 19056045, 32768985, 46479227, 56953419, 94922365, 139437681, 232396135, 284767095, 697188405, 1347897583, 4043692749, 6739487915, 20218463745]

約数ペア:

[(1, 20218463745), (3, 6739487915), (5, 4043692749), (15, 1347897583), (29, 697188405), (71, 284767095), (87, 232396135), (145, 139437681), (213, 94922365), (355, 56953419), (435, 46479227), (617, 32768985), (1061, 19056045), (1065, 18984473), (1851, 10922995), (2059, 9819555), (3085, 6553797), (3183, 6352015), (5305, 3811209), (6177, 3273185), (9255, 2184599), (10295, 1963911), (15915, 1270403), (17893, 1129965), (30769, 657105), (30885, 654637), (43807, 461535), (53679, 376655), (75331, 268395), (89465, 225993), (92307, 219035), (131421, 153845)]