19638961925

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{38749}}^1$

素因数の和:38886

約数の個数: 48

約数和(自身を含む): 28253400000

約数和(自身を除く): 8614438075

約数列:

[1, 5, 11, 19, 25, 55, 95, 97, 209, 275, 475, 485, 1045, 1067, 1843, 2425, 5225, 5335, 9215, 20273, 26675, 38749, 46075, 101365, 193745, 426239, 506825, 736231, 968725, 2131195, 3681155, 3758653, 8098541, 10655975, 18405775, 18793265, 40492705, 41345183, 71414407, 93966325, 202463525, 206725915, 357072035, 785558477, 1033629575, 1785360175, 3927792385, 19638961925]

約数ペア:

[(1, 19638961925), (5, 3927792385), (11, 1785360175), (19, 1033629575), (25, 785558477), (55, 357072035), (95, 206725915), (97, 202463525), (209, 93966325), (275, 71414407), (475, 41345183), (485, 40492705), (1045, 18793265), (1067, 18405775), (1843, 10655975), (2425, 8098541), (5225, 3758653), (5335, 3681155), (9215, 2131195), (20273, 968725), (26675, 736231), (38749, 506825), (46075, 426239), (101365, 193745)]