20492450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:132

約数の個数: 96

約数和(自身を含む): 45800640

約数和(自身を除く): 25308190

約数列:

[1, 2, 5, 10, 11, 19, 22, 25, 37, 38, 50, 53, 55, 74, 95, 106, 110, 185, 190, 209, 265, 275, 370, 407, 418, 475, 530, 550, 583, 703, 814, 925, 950, 1007, 1045, 1166, 1325, 1406, 1850, 1961, 2014, 2035, 2090, 2650, 2915, 3515, 3922, 4070, 5035, 5225, 5830, 7030, 7733, 9805, 10070, 10175, 10450, 11077, 14575, 15466, 17575, 19610, 20350, 21571, 22154, 25175, 29150, 35150, 37259, 38665, 43142, 49025, 50350, 55385, 74518, 77330, 98050, 107855, 110770, 186295, 193325, 215710, 276925, 372590, 386650, 409849, 539275, 553850, 819698, 931475, 1078550, 1862950, 2049245, 4098490, 10246225, 20492450]

約数ペア:

[(1, 20492450), (2, 10246225), (5, 4098490), (10, 2049245), (11, 1862950), (19, 1078550), (22, 931475), (25, 819698), (37, 553850), (38, 539275), (50, 409849), (53, 386650), (55, 372590), (74, 276925), (95, 215710), (106, 193325), (110, 186295), (185, 110770), (190, 107855), (209, 98050), (265, 77330), (275, 74518), (370, 55385), (407, 50350), (418, 49025), (475, 43142), (530, 38665), (550, 37259), (583, 35150), (703, 29150), (814, 25175), (925, 22154), (950, 21571), (1007, 20350), (1045, 19610), (1166, 17575), (1325, 15466), (1406, 14575), (1850, 11077), (1961, 10450), (2014, 10175), (2035, 10070), (2090, 9805), (2650, 7733), (2915, 7030), (3515, 5830), (3922, 5225), (4070, 5035)]