20671650

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{647}}^1$

素因数の和:736

約数の個数: 72

約数和(自身を含む): 56407104

約数和(自身を除く): 35735454

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 71, 75, 90, 142, 150, 213, 225, 355, 426, 450, 639, 647, 710, 1065, 1278, 1294, 1775, 1941, 2130, 3195, 3235, 3550, 3882, 5325, 5823, 6390, 6470, 9705, 10650, 11646, 15975, 16175, 19410, 29115, 31950, 32350, 45937, 48525, 58230, 91874, 97050, 137811, 145575, 229685, 275622, 291150, 413433, 459370, 689055, 826866, 1148425, 1378110, 2067165, 2296850, 3445275, 4134330, 6890550, 10335825, 20671650]

約数ペア:

[(1, 20671650), (2, 10335825), (3, 6890550), (5, 4134330), (6, 3445275), (9, 2296850), (10, 2067165), (15, 1378110), (18, 1148425), (25, 826866), (30, 689055), (45, 459370), (50, 413433), (71, 291150), (75, 275622), (90, 229685), (142, 145575), (150, 137811), (213, 97050), (225, 91874), (355, 58230), (426, 48525), (450, 45937), (639, 32350), (647, 31950), (710, 29115), (1065, 19410), (1278, 16175), (1294, 15975), (1775, 11646), (1941, 10650), (2130, 9705), (3195, 6470), (3235, 6390), (3550, 5823), (3882, 5325)]