20199990125

素因数分解:

$5^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{14639}}^1$

素因数の和:14763

約数の個数: 64

約数和(自身を含む): 30694809600

約数和(自身を除く): 10494819475

約数列:

[1, 5, 7, 19, 25, 35, 83, 95, 125, 133, 175, 415, 475, 581, 665, 875, 1577, 2075, 2375, 2905, 3325, 7885, 10375, 11039, 14525, 14639, 16625, 39425, 55195, 72625, 73195, 102473, 197125, 275975, 278141, 365975, 512365, 1215037, 1379875, 1390705, 1829875, 1946987, 2561825, 6075185, 6953525, 8505259, 9734935, 12809125, 23085703, 30375925, 34767625, 42526295, 48674675, 115428515, 151879625, 161599921, 212631475, 243373375, 577142575, 807999605, 1063157375, 2885712875, 4039998025, 20199990125]

約数ペア:

[(1, 20199990125), (5, 4039998025), (7, 2885712875), (19, 1063157375), (25, 807999605), (35, 577142575), (83, 243373375), (95, 212631475), (125, 161599921), (133, 151879625), (175, 115428515), (415, 48674675), (475, 42526295), (581, 34767625), (665, 30375925), (875, 23085703), (1577, 12809125), (2075, 9734935), (2375, 8505259), (2905, 6953525), (3325, 6075185), (7885, 2561825), (10375, 1946987), (11039, 1829875), (14525, 1390705), (14639, 1379875), (16625, 1215037), (39425, 512365), (55195, 365975), (72625, 278141), (73195, 275975), (102473, 197125)]