215975375

素因数分解:

$5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1181}}^1$

素因数の和:1233

約数の個数: 64

約数和(自身を含む): 354032640

約数和(自身を除く): 138057265

約数列:

[1, 5, 7, 11, 19, 25, 35, 55, 77, 95, 125, 133, 175, 209, 275, 385, 475, 665, 875, 1045, 1181, 1375, 1463, 1925, 2375, 3325, 5225, 5905, 7315, 8267, 9625, 12991, 16625, 22439, 26125, 29525, 36575, 41335, 64955, 90937, 112195, 147625, 157073, 182875, 206675, 246829, 324775, 454685, 560975, 785365, 1033375, 1234145, 1623875, 1727803, 2273425, 2804875, 3926825, 6170725, 8639015, 11367125, 19634125, 30853625, 43195075, 215975375]

約数ペア:

[(1, 215975375), (5, 43195075), (7, 30853625), (11, 19634125), (19, 11367125), (25, 8639015), (35, 6170725), (55, 3926825), (77, 2804875), (95, 2273425), (125, 1727803), (133, 1623875), (175, 1234145), (209, 1033375), (275, 785365), (385, 560975), (475, 454685), (665, 324775), (875, 246829), (1045, 206675), (1181, 182875), (1375, 157073), (1463, 147625), (1925, 112195), (2375, 90937), (3325, 64955), (5225, 41335), (5905, 36575), (7315, 29525), (8267, 26125), (9625, 22439), (12991, 16625)]