19642150

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{503}}^1$

素因数の和:597

約数の個数: 48

約数和(自身を含む): 40497408

約数和(自身を除く): 20855258

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 71, 110, 142, 275, 355, 503, 550, 710, 781, 1006, 1562, 1775, 2515, 3550, 3905, 5030, 5533, 7810, 11066, 12575, 19525, 25150, 27665, 35713, 39050, 55330, 71426, 138325, 178565, 276650, 357130, 392843, 785686, 892825, 1785650, 1964215, 3928430, 9821075, 19642150]

約数ペア:

[(1, 19642150), (2, 9821075), (5, 3928430), (10, 1964215), (11, 1785650), (22, 892825), (25, 785686), (50, 392843), (55, 357130), (71, 276650), (110, 178565), (142, 138325), (275, 71426), (355, 55330), (503, 39050), (550, 35713), (710, 27665), (781, 25150), (1006, 19525), (1562, 12575), (1775, 11066), (2515, 7810), (3550, 5533), (3905, 5030)]