256438350

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{81409}}^1$

素因数の和:81434

約数の個数: 72

約数和(自身を含む): 787397520

約数和(自身を除く): 530959170

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 50, 63, 70, 75, 90, 105, 126, 150, 175, 210, 225, 315, 350, 450, 525, 630, 1050, 1575, 3150, 81409, 162818, 244227, 407045, 488454, 569863, 732681, 814090, 1139726, 1221135, 1465362, 1709589, 2035225, 2442270, 2849315, 3419178, 3663405, 4070450, 5128767, 5698630, 6105675, 7326810, 8547945, 10257534, 12211350, 14246575, 17095890, 18317025, 25643835, 28493150, 36634050, 42739725, 51287670, 85479450, 128219175, 256438350]

約数ペア:

[(1, 256438350), (2, 128219175), (3, 85479450), (5, 51287670), (6, 42739725), (7, 36634050), (9, 28493150), (10, 25643835), (14, 18317025), (15, 17095890), (18, 14246575), (21, 12211350), (25, 10257534), (30, 8547945), (35, 7326810), (42, 6105675), (45, 5698630), (50, 5128767), (63, 4070450), (70, 3663405), (75, 3419178), (90, 2849315), (105, 2442270), (126, 2035225), (150, 1709589), (175, 1465362), (210, 1221135), (225, 1139726), (315, 814090), (350, 732681), (450, 569863), (525, 488454), (630, 407045), (1050, 244227), (1575, 162818), (3150, 81409)]