19744121375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{257}}^1\times {\mathrm{947}}^1$

素因数の和:1289

約数の個数: 64

約数和(自身を含む): 27471674880

約数和(自身を除く): 7727553505

約数列:

[1, 5, 11, 25, 55, 59, 125, 257, 275, 295, 649, 947, 1285, 1375, 1475, 2827, 3245, 4735, 6425, 7375, 10417, 14135, 15163, 16225, 23675, 32125, 52085, 55873, 70675, 75815, 81125, 118375, 166793, 243379, 260425, 279365, 353375, 379075, 614603, 833965, 1216895, 1302125, 1396825, 1895375, 2677169, 3073015, 4169825, 6084475, 6984125, 13385845, 14359361, 15365075, 20849125, 30422375, 66929225, 71796805, 76825375, 157952971, 334646125, 358984025, 789764855, 1794920125, 3948824275, 19744121375]

約数ペア:

[(1, 19744121375), (5, 3948824275), (11, 1794920125), (25, 789764855), (55, 358984025), (59, 334646125), (125, 157952971), (257, 76825375), (275, 71796805), (295, 66929225), (649, 30422375), (947, 20849125), (1285, 15365075), (1375, 14359361), (1475, 13385845), (2827, 6984125), (3245, 6084475), (4735, 4169825), (6425, 3073015), (7375, 2677169), (10417, 1895375), (14135, 1396825), (15163, 1302125), (16225, 1216895), (23675, 833965), (32125, 614603), (52085, 379075), (55873, 353375), (70675, 279365), (75815, 260425), (81125, 243379), (118375, 166793)]