19313450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{691}}^1$

素因数の和:759

約数の個数: 48

約数和(自身を含む): 39643296

約数和(自身を除く): 20329846

約数列:

[1, 2, 5, 10, 13, 25, 26, 43, 50, 65, 86, 130, 215, 325, 430, 559, 650, 691, 1075, 1118, 1382, 2150, 2795, 3455, 5590, 6910, 8983, 13975, 17275, 17966, 27950, 29713, 34550, 44915, 59426, 89830, 148565, 224575, 297130, 386269, 449150, 742825, 772538, 1485650, 1931345, 3862690, 9656725, 19313450]

約数ペア:

[(1, 19313450), (2, 9656725), (5, 3862690), (10, 1931345), (13, 1485650), (25, 772538), (26, 742825), (43, 449150), (50, 386269), (65, 297130), (86, 224575), (130, 148565), (215, 89830), (325, 59426), (430, 44915), (559, 34550), (650, 29713), (691, 27950), (1075, 17966), (1118, 17275), (1382, 13975), (2150, 8983), (2795, 6910), (3455, 5590)]