1999144475

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{167}}^1\times {\mathrm{191}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 2639831040

約数和(自身を除く): 640686565

約数列:

[1, 5, 23, 25, 109, 115, 167, 191, 545, 575, 835, 955, 2507, 2725, 3841, 4175, 4393, 4775, 12535, 18203, 19205, 20819, 21965, 31897, 62675, 91015, 96025, 104095, 109825, 159485, 418669, 455075, 478837, 520475, 733631, 797425, 2093345, 2394185, 3476773, 3668155, 10466725, 11970925, 17383865, 18340775, 79965779, 86919325, 399828895, 1999144475]

約数ペア:

[(1, 1999144475), (5, 399828895), (23, 86919325), (25, 79965779), (109, 18340775), (115, 17383865), (167, 11970925), (191, 10466725), (545, 3668155), (575, 3476773), (835, 2394185), (955, 2093345), (2507, 797425), (2725, 733631), (3841, 520475), (4175, 478837), (4393, 455075), (4775, 418669), (12535, 159485), (18203, 109825), (19205, 104095), (20819, 96025), (21965, 91015), (31897, 62675)]