19954275

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{67}}^1$

素因数の和:129

約数の個数: 72

約数和(自身を含む): 38551104

約数和(自身を除く): 18596829

約数列:

[1, 3, 5, 11, 15, 19, 25, 33, 55, 57, 67, 75, 95, 165, 201, 209, 275, 285, 335, 361, 475, 627, 737, 825, 1005, 1045, 1083, 1273, 1425, 1675, 1805, 2211, 3135, 3685, 3819, 3971, 5025, 5225, 5415, 6365, 9025, 11055, 11913, 14003, 15675, 18425, 19095, 19855, 24187, 27075, 31825, 42009, 55275, 59565, 70015, 72561, 95475, 99275, 120935, 210045, 266057, 297825, 350075, 362805, 604675, 798171, 1050225, 1330285, 1814025, 3990855, 6651425, 19954275]

約数ペア:

[(1, 19954275), (3, 6651425), (5, 3990855), (11, 1814025), (15, 1330285), (19, 1050225), (25, 798171), (33, 604675), (55, 362805), (57, 350075), (67, 297825), (75, 266057), (95, 210045), (165, 120935), (201, 99275), (209, 95475), (275, 72561), (285, 70015), (335, 59565), (361, 55275), (475, 42009), (627, 31825), (737, 27075), (825, 24187), (1005, 19855), (1045, 19095), (1083, 18425), (1273, 15675), (1425, 14003), (1675, 11913), (1805, 11055), (2211, 9025), (3135, 6365), (3685, 5415), (3819, 5225), (3971, 5025)]