20648100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{6257}}^1$

素因数の和:6285

約数の個数: 72

約数和(自身を含む): 65183328

約数和(自身を除く): 44535228

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 25, 30, 33, 44, 50, 55, 60, 66, 75, 100, 110, 132, 150, 165, 220, 275, 300, 330, 550, 660, 825, 1100, 1650, 3300, 6257, 12514, 18771, 25028, 31285, 37542, 62570, 68827, 75084, 93855, 125140, 137654, 156425, 187710, 206481, 275308, 312850, 344135, 375420, 412962, 469275, 625700, 688270, 825924, 938550, 1032405, 1376540, 1720675, 1877100, 2064810, 3441350, 4129620, 5162025, 6882700, 10324050, 20648100]

約数ペア:

[(1, 20648100), (2, 10324050), (3, 6882700), (4, 5162025), (5, 4129620), (6, 3441350), (10, 2064810), (11, 1877100), (12, 1720675), (15, 1376540), (20, 1032405), (22, 938550), (25, 825924), (30, 688270), (33, 625700), (44, 469275), (50, 412962), (55, 375420), (60, 344135), (66, 312850), (75, 275308), (100, 206481), (110, 187710), (132, 156425), (150, 137654), (165, 125140), (220, 93855), (275, 75084), (300, 68827), (330, 62570), (550, 37542), (660, 31285), (825, 25028), (1100, 18771), (1650, 12514), (3300, 6257)]